JOURNAL OF APPLIED POLYMER SCIENCE
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2025
·Vol. 142
·期 14
·e56682
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IF 2.8
Huili Liu,Luyao Su,Ruihan Li,Liting Wang,Dongyu Bai
In this article, poly(ethylene glycol)-poly( d -lactide) (PEG-PDLA) block copolymers with different PEG chain lengths were synthesized and melt-mixed with poly( l -lactide) (PLLA) and rubber nanoparticles. The role of PEG-PDLA block copolymers in tailoring the microstructures and performances of PLLA/rubber blend were investigated in detail. It was found that high contents of stereocomplex (SC) crystals were generated in PLLA/rubber/PEG-PDLA copolymer blends, which induced rubber nanoparticles to agglomerate and form network-like structures. The size of rubber aggregates and continuity of rubber network-like structures first increased and then declined significantly as the PEG chain length increased. Resultingly, the impact toughness of PLLA/rubber/PEG-PDLA copolymer blends first remarkably increased to 74.1 kJ/m 2 and then decreased to 30.6 kJ/m 2 . Meanwhile, the elongation at break increased with increasing PEG chain length and little loss of tensile strength happened, revealing good stiffness-toughness balance performances of PLLA/rubber/PEG-PDLA copolymer blends. Moreover, the matrix crystallization rate of PLLA/rubber/PEG-PDLA copolymer blends could be greatly increased by increasing PEG chain length and the PLLA/rubber/PEG-PDLA copolymer blends exhibited much higher Vicat softening temperatures than PLLA/rubber blend, which confirmed the excellent heat resistance of PLLA/rubber/PEG-PDLA copolymer blends. These interesting findings suggested that PEG-PDLA block copolymers were highly conducive to prepare PLLA materials with outstanding comprehensive performances.
研究领域:
材料科学
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高分子化学
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DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2025
·
IF 2.8
Jiayao Wang,Jingguo Li,Shaokui Cao,Yingliang Liu,Jun Shi
In recent years, the remotely multi-responsive chitosan (CS) hydrogel has been garnering extensive attention owing to its remarkable potential in biomedical applications. Meanwhile, it presents a wide range of uses in the realm of controlled drug delivery and photothermal chemical combination therapy. In this paper, the CS/β-glycerophosphate disodium salt (β-GP) physical crosslinked network was employed as the framework to encapsulate near-infrared (NIR) responsive hollow copper sulfide (CuS)/polydopamine (PDA) nanoparticles, and the NIR/pH synergistic responsive CS/CuS/PDA hydrogel was fabricated. The negatively charged β-GP, along with the hollow CuS/PDA nanoparticles, played a key role in promoting the creation of abundant electronegative cavities. As a result, the hybrid hydrogel achieved an impressively high DOX loading rate, reaching up to 95.5%. The CS/CuS/PDA hydrogel exhibits excellent pH responsiveness, which could be attributed to the disintegration of the CS/β-GP network under acidic buffer solution. In addition, hollow CuS/PDA nanoparticles embedded in the hydrogel endow the hydrogel with excellent NIR photothermal responsiveness, which significantly promotes the release of DOX. Consequently, the CS/CuS/PDA hydrogel reveals excellent synergistically enhanced NIR, pH, and thermal triple-responsiveness, indicating its tremendous promise in the field of controlled drug release.
研究领域:
生物医学工程
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材料科学
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药学
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DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2025
·
IF 2.8
Mengjie Yue,Zejun Pu,Xu Wang,Kaijie Yang,Jiahong Pang,Yuhao Yang,Fang Wu,Dayang Yu,Pan Zheng,Jiachun Zhong
As electronic technology swiftly progresses, conventional epoxy resins can no longer fully meet the demands of copper-clad laminates (CCLs). To develop an epoxy resin exhibiting superior thermal performance, low dielectric properties, and reduced moisture absorption, low-molecular-weight TMBPA-MPPO-2OH was successfully synthesized using TMBPA and DMP as comonomers. The molecular structure of TMBPA-MPPO-2OH was comprehensively characterized by FT-IR and 1 H NMR spectroscopy. Subsequently, the synthesized monomer was employed to modify epoxy resin E51 in combination with 4,4′-diaminodiphenylmethane (DDM). Modified epoxy resin composites (E51/DDM/TMBPA-MPPO-2OH) were prepared through a casting method, with TMBPA-MPPO-2OH and E51 mixed in varying mass ratios. The effects of TMBPA-MPPO-2OH incorporation on both the curing kinetics and final characteristics of the modified epoxy resin systems were systematically investigated. Results showed that E51/DDM/TMBPA-MPPO-2OH composites possessed a high glass transition temperature (T g = 178.77 ~ 194.16°C), along with excellent thermal stability (T d5% = 355 ~ 360°C) and flexural strength (67.31 ~ 75.28 MPa). Additionally, the inclusion of TMBPA-MPPO-2OH reduced the dielectric constant, dielectric loss tangent, and moisture absorption rate of E51/DDM/TMBPA-MPPO-2OH. When the TMBPA-MPPO-2OH content was 20 wt%, the dielectric constant (10 MHz, 3.2), dielectric loss (10 MHz, 0.015), and moisture absorption rate (1.7%) of E51/DDM/TMBPA-MPPO-2OH showed reductions of 16%, 58%, and 32%, respectively, compared to the pure epoxy resin.
研究领域:
材料科学
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电子工程
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DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2025
·
IF 2.8
Zhihua Li,Ziyi Wang,Yidan Zhang,Ziteng Guo,Bo Zhao,Sainan Liu
Polyurethane elastomers are widely employed as underwater transducer encapsulants, owing to their distinctive mechanical and acoustic properties. However, the lack of hydrophobicity of polyurethanes remains a problem to be resolved. A series of hydrophobic fluorine-modified polyurethanes (FPUs) were synthesized by incorporating 1H,1H,2H,2H-perfluorodecyltriMethoxysilane (FAS-17) into polybutadiene-based polyurethane. These fluorinated chain extenders enhance the hydrophobicity by reducing surface energy and increase physical cross-linking points, thereby improving the material's overall performance. Remarkably, at a FAS-17 content of 4 wt%, the water contact angle of FPU-2 rises to 106.0°, with a water absorption rate of only 0.189%. This corresponds to a substantial 58.6% reduction in water absorption compared to unmodified polyurethane (PU), demonstrating its exceptional hydrophobicity. Additionally, the introduction of fluorine-containing chains enhances mechanical properties, with FPU-2 having an elongation at break (452%) and tensile strength (10.93 MPa). These results demonstrate that fluorinated polyurethane not only retains the essential properties for underwater sound transmission but also significantly improves hydrophobicity.
研究领域:
材料科学
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声学工程
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产品关联
DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2025
·
IF 2.8
Xiajing Hong,Yalei Wang,Tailin Li,Zhiwei Du,Yalan Li,Xiurong Li
Conductive hydrogels have emerged as promising candidates for flexible sensing devices, yet their widespread application is hindered by the challenge of simultaneously achieving mechanical stability and multi-parameter responsiveness. To address this issue, we developed a dual cross-linking strategy combining physical and chemical interactions, and reinforced with cellulose nanofibrils (CNF). By employing CNF as a structural scaffold, we copolymerized thermoresponsive N -isopropylacrylamide (NIPAM) with acrylamide (AM) to construct a mechanically robust three-dimensional network. This architecture not only enhanced the mechanical properties of the hydrogel but also endowed it with dual pH- and temperature-responsive behavior. Furthermore, the incorporation of Al 3+ ions facilitated strong coordination and electrostatic interactions with the polymer matrix, significantly improving conductivity and structural stability. The resulting P(AM-co-NIPAM)/CNF/AlCl 3 hydrogel exhibited tunable solubility across a broad pH range (2–14) and temperature spectrum (10°C–50°C), demonstrating exceptional environmental responsiveness (swelling ratio reached 499 at a pH of 2 and 1632 at a pH of 14). Moreover, the hydrogel possessed outstanding mechanical performance, with an elongation at break of 488% and a tensile strength of 0.1008 MPa. When applied as a strain sensor, the hydrogel exhibited a wide sensing range (300% strain), rapid responsed time (600 ms), and high sensitivity, enabling the detection of complex human motions and spatial variations. This work presents a versatile approach for designing multifunctional conductive hydrogels with potential applications in flexible electronics and wearable sensors.
研究领域:
材料科学
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生物医学工程
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化学工程
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DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2025
·
IF 2.8
Zhen-wei Guo,Yan-fen Mo,Meng-yuan Luo,Yu-hui Xie,Dong Feng,Feng Wu,Yi Mei,Delong Xie
Ammonia is commonly used as a preservative for natural rubber, but its high volatility and strong irritation to the human respiratory tract pose significant health risks. In this study, we utilized the layered two-dimensional nanomaterial Ti 3 C 2 T x (MXene) as an antimicrobial agent and synthesized MXene-SiO 2 nanocomposites by intercalating KH550-modified silica nanoparticles into MXene. This nanocomposite was then incorporated into a MXene-SiO 2 /low-ammonia preservation system. The results demonstrated that this novel system effectively preserved concentrated natural latex over a four-month period. Throughout this time, the volatile fatty acid (VFA) values remained below 0.1, the pH was stable at approximately 10, the mechanical stability time (MST) exceeded 700 s, and viscosity remained around 300 mPa·s—meeting the requirements for subsequent processing. The introduction of the MXene-SiO 2 nanocomposite into the preservation system had no adverse effects on the structure or performance of the dry film. The system exhibited excellent film-forming properties and promoted the formation of a cross-linked network in the vulcanized film. As a result, the tensile strength of the vulcanized film reached 22.87 MPa, a 64% increase compared to pure natural latex vulcanized film. this study provides an effective and environmentally friendly approach for preserving natural latex while simultaneously enhancing the mechanical properties of its vulcanized film.
研究领域:
材料科学
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环境科学
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化学工程
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DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2025
·
IF 2.8
Chunyuan Huang,Xindan Dai,Xiang Shao,Peicheng Xu,Miao Cao,Wen Wu
The growing demand for flexible electronic devices in diverse applications has driven increased attention to conductive polymer-based materials. In this study, we fabricated composite hydrogel fibers with excellent conductivity and sensing stability via wet spinning using sodium polyacrylate (PAAS), sodium alginate (SA), and graphene oxide (GO). The effects of polymer mass ratio, conductive particle concentration, and cross-linker on fiber performance were systematically investigated through orthogonal experiments. Optimal conductivity and elastic modulus were achieved at PAAS/SA = 1:1, CaCl 2 = 3%, and GO = 0.05 g. The intrinsic correlations between morphology/thermal properties (characterized by SEM, FTIR, and TG) and comprehensive performance were elucidated. Electromechanical tests and human motion sensing trials demonstrated excellent sensing sensitivity (GF = 3.17) and stability within a 0% – 100% strain range.
研究领域:
材料科学
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柔性电子器件
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产品关联
DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2025
·
IF 2.8
Lele Liu,Aofei Li,Xiaogang Luo,Xuejing Zheng,Keyong Tang,Ying Pei
The cross-linked collagen sponge (CCS) was fabricated by crosslinking mesoscopic collagen fibrils using glutaraldehyde as a crosslinking agent. The structure of CCS was analyzed using scanning electron microscopy (SEM), Fourier infrared spectroscopy (FTIR), and thermal analysis (TA). Static adsorption experiments were conducted with Congo red (CR) as an anionic dye model to assess the adsorption capability. The findings indicate that the adsorption behavior of CCS follows the Langmuir isothermal adsorption model, quasi-second-order kinetic model, and molecular diffusion model. At 333 K, CCS demonstrates a remarkable maximum adsorption capacity ( Q max ) of 232.1 mg/g, surpassing other reported bio-based materials in terms of its exceptional performance as an adsorbent. Thermodynamic analysis confirms the spontaneous uptake of CR by CCS. Additionally, repeated tests involving both adsorption and desorption validate the outstanding stability and reusability of CCS for sorption of anionic dyes.
研究领域:
生物材料学
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环境科学
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化学工程
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DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
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2025
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IF 2.8
Zeshang Jiang,Jiacheng Yu,Wuchao Cheng,Zhenxiang Xin,Jieting Geng,Lin Xia
Thermoresponsive shape memory polymers have garnered significant attention in sustainable packaging solutions due to their energy-efficient actuation and adaptive functionalities. In this study, we report a novel cellular material derived from natural Eucommia rubber (NER) with excellent shape memory and thermoshrinkable properties. The article described the preparation and properties of these foamed NER composites and investigated the impact of the foaming agent's content on the mechanical, thermal, and shape memory properties of these composites. Particularly noteworthy is the discovery of shape memory behavior in the cells, a phenomenon not reported in other literature. The experimental results indicated that as the amount of foaming agent AC increased, the cell size of the composite material rose from 40 to 70 μm. The density decreased significantly from 0.42 to 0.21 g/cm 3 , and the tensile strength of the composite material also decreased from 9.9 to 3.5 MPa. Besides these fundamental performance changes, the NER composites demonstrated outstanding shape memory properties. The excellent shape memory properties were closely linked to the cross-linking structure and crystal structure within the composite material. Remarkably, this manuscript is the first to report the preparation of thermal shrinkage foaming rubbers and observe their thermal shrinking behavior. The foamed material developed in this study is expected to demonstrate broad application prospects in multiple fields, including heat-shrinkable packaging, thermal insulation and protection, and solid–liquid separation.
研究领域:
材料科学
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生物基材料
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聚合物科学
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产品关联
DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2025
·
IF 2.8
Feng-Tao Zheng,Hai-Jun Zhang,Gaoxue Xu
Long-chain-alkyl siloxanes were commonly used as hydrophobic treatment agents in cotton fabrics. In this work, long-chain-alkyl siloxanes (S-Siloxanes) were prepared by thiol–ene reaction between polyvinylmethylsiloxanes (Si CC) and 1-pentanethiol. Thermal behavior, glass transition temperature (Tg), crystallization property, and hydrophobic treatment performance were investigated and compared with those of commonly used long-chain-alkyl siloxanes (C-Siloxanes) prepared via hydrosilylation reaction with platinum as a catalyst. The results showed that S-Siloxanes were thermally stable up to 350°C and possessed similar Tg and crystallization performance as C-Siloxanes. Water contact angles of glasses and cotton fabrics treated by S-Siloxanes reached 87.67° and 96.33° respectively, which were significantly increased compared to untreated glasses and cotton fabrics of 36.27° and 0°. The results were similar for glasses and cotton fabrics treated by C-Siloxanes. This work provides a milder and greener method to synthesize long-chain-alkyl siloxanes.
研究领域:
材料科学
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纺织化学
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DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2025
·
IF 2.8
Lifan Cai,Jingjing Yang,Tuo Zhao,Jijun Huang,Zequn Li,Hao Zhang,Yiwen Yao,Wanxin Zhu,Xinming Wu,Le Shao
With the advancement of the global dual-carbon goal, green technology has become a priority in the energy field. Among energy storage technologies, all-solid-state batteries attract significant attention due to their high energy density, enhanced safety, and long cycle life. Poly(ethylene oxide) (PEO)-based polymer solid-state electrolytes are a research hotspot for next-generation lithium-metal batteries because of their flexibility, film-forming capabilities, and compatibility with lithium salts. In this study, cyclodextrin (β-CD) is employed as a green filler and combined with high-modulus polyacrylonitrile (PAN) fibers and plastic crystalline succinonitrile (SN) to synergistically enhance the electrochemical and mechanical properties of PEO-based electrolytes. The PAN/PEO/LiClO 4 /β-CD/SN electrolyte achieves an ionic conductivity of 6.5 × 10 −5 S cm −1 at 30°C and a lithium ion transference number of 0.33 at 80°C. PAN fiber significantly improves mechanical properties, achieving a tensile strength exceeding eight times that of the PEO/LiClO 4 membrane. In Li/Li symmetric batteries, the electrolyte demonstrates excellent interfacial stability for over 1100 h at 0.1 mA cm −2 . Additionally, the LiFePO 4 |PAN/PEO/LiClO 4 /β-CD/SN|Li coin cell exhibits an initial discharge specific capacity of 148 mAh g −1 at 80°C and 0.5C, retaining 70% capacity after 200 cycles. This study presents a novel design approach for utilizing green fillers in SPEs.
研究领域:
材料科学
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能源技术
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绿色化学
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产品关联
DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
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2025
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IF 2.8
Dong Ge,Xianzhou Qiu,Zhijie Chen,Dongming Qi,Jiawei Li
“Spraying instead of dyeing” is a new clean dyeing technology that can achieve low/no water washing and shorter processes for cotton fabrics, which is conducive to the transformation, upgrading and sustainable development of textile printing and dyeing. In this paper, a self-cross-linking grafted silicone polyacrylate (SGSP) latexes were first prepared as a binder. Then, the pigment digital inkjet was used on cotton fabrics without washing, achieving energy saving, emission reduction, and carbon reduction. The effects of the mass of methacryloyl-terminated polydimethylsiloxane (PDMS-MA) and glycidyl methacrylate (GMA) on the hydrophobicity, thermodynamics, and mechanical properties of latex films were investigated, and the influences of pigment digital inkjet dyeing process on the wearability of spray-dyed cotton fabrics (SDCF) were studied. Results indicated that when the mass of PDMS-MA was 30 wt% and the GMA was 3%, the SGSP latex film had excellent hydrophobicity and mechanical properties. Meanwhile, under the process conditions of binder dosage of 30%, baking temperature of 160°C, and baking time of 4 min, SDCF had low hardness, good air permeability, and the color fastness to rubbing to the level of commercially available binders. This study presents clean dyeing technology and provides a valuable outlook into the future of binder production and application.
研究领域:
纺织科学
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材料科学
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环境科学
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产品关联
DOI
高影响因子
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