JOURNAL OF APPLIED POLYMER SCIENCE
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2024
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IF 2.7
Yuanhang Song,Tao Wang,Jingxian Zhang,Yanhui Li,Junru Li,Chuanwei Zhang,Pengfei Zhang
This study explores the ion transport properties of self-microporous polymers by introducing a novel combination of carboxylated PIM-1 with sulfonated graphene oxide (SGO) to fabricate membranes. The resulting membranes exhibit enhanced structural stability, hydrophilicity, and ion exchange capacity (IEC) compared with the original carboxylated PIM-1 (CPIM-1), while preserving the subnanoporous structure. However, it was observed that excessive SGO loading leads to a detrimental “blocking effect” that compromises various membrane properties. Through electrically driven ion transport tests in a 0.01 M NaCl solution, it is demonstrated that a moderate amount of SGO effectively enhances membrane conductivity from 46.96 μS m −1 (for carboxylated PIM-1 membranes without SGO) to 56.55 μS m −1 . Additionally, the membranes exhibit selective sieving of cations and anions. The presence of small-sized ion channels and the electrostatic repulsion generated by the abundant carboxyl and sulfonic acid groups significantly hinder Cl − transport. Consequently, the Na + /Cl − migration ratio (t + /t − ) reaches 98 at a concentration ratio of 10:1 on both sides of the membrane, surpassing the value of 3.74 observed for the pure CPIM-1 membrane. This investigation provides valuable insights for the practical application of easily prepared, processable, and cost-effective hydrophilic self-contained microporous polymer membranes in ion transport applications.
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2024
·
IF 2.7
Liyu Chen,Pengsong Li,Jingwen Guan,Chenyang Xu,Chang-An Xu,Zhuohong Yang
With the implementation of plastic restrictions and the increasingly serious problem of environmental pollution, paper with green and recyclable characteristics is gradually becoming a substitute for packaging materials. However, the rich cellulose structure in the paper, which contains hydroxyl groups leading to its hydrophilicity, allows water molecules to penetrate the paper and disrupt the hydrogen bonds between cellulose, resulting in a decrease in mechanical properties. Therefore, waterproof coatings are crucial for paper-based materials to be used in many applications. Based on this, the paper surface was chemically modified with castor oil-based resin (CO-590) monomer prepared by coupling agent and castor oil (CO). The results indicated that the modified paper with the contact angle (CA) of 114° had excellent waterproof performance and had a reduction by 40.3% in water vapor transmission rate (WVTR), but also its mechanical increased to 26.9 MPa and the decomposition temperature to 410.5°C. In addition, the coating on its surface could be removed in an alkaline solution and had a possibility to recycle blank paper in the future for manufacturing sustainable production. This work not only provides a method for preparing modified packaging paper, but also expands the application fields of materials.
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2024
·Vol. 141
·期 32
·e55745
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IF 2.7
Xin Chen,Jianyan Feng,Shuaishuai Han,Yang Bai,Peng Wang,Haoqiang Liu,Peng Zhang,Xiaomin Luo
With the implementation of the “plastic restriction order” and the demand for sustainable society development, biodegradable coatings derived from biomass materials have garnered significant interest. This study presents the synthesis of a double-salt bio-based waterborne polyurethane (PLA-WPU) by utilizing poly(lactic acid) polyol (PLA) and isophorone diisocyanate (IPDI) as the main raw materials, along with 2,2-dihydroxymethylpropionic acid (DMPA) and sodium ethylenediamine ethanesulfonate (A-95) as a hydrophilic chain extender. Synergistic reinforcement of PLA-WPU using hydrophobically modified cellulose nanocrystals (M-CNC) and polycarbonate diimide (PDCDA). At an M-CNC content of 3% relative to the effective mass of PLA-WPU, the tensile strength reached 36.12 MPa. After 8 days a lipase PBS solution, the degradation rate reached 54%. Excellent waterproof performance was observed, exhibiting a contact angle of 143.5°. When applied as a surface coating on kraft paper, the Cobb 60 value decreased from 74.0 to 28.6 g/m 2 , while increasing the tensile strength by 451.3%. Importantly, the kraft paper maintained excellent waterproofing, mechanical strength, and high barrier properties even after repeated folding, high and low-temperature conditions, and exposure to varying pH solutions. It proved to be both degradable and recyclable, making it a promising alternative to liner paper or plastic membrane, especially in food packaging.
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2025
·
IF 2.8
Pengcheng Deng,Wenyu Wan,Huangying Guo,Haonan Zhang,Yucheng Zhou,Xing Zhou
Polymer materials, commonly used and susceptible to damage from external forces and environmental factors, now have a new intelligent self-healing variant inspired by living organisms. This material self-repairs via dynamic covalent bonds and noncovalent interactions, mitigating microdamage risks and enhancing longevity. The self-healing polyurethane urea based on disulfide bonds was prepared by reacting a prepolymer synthesized from lipoic acid (TA), triethylenetramine (TETA), and polytetrahydrofuran (PTMEG) with isocyanate. Subsequently, nickel powder modified with amino groups on the surface was prepared by the hydrolysis of tetraethyl orthosilicate (TEOS) and modification with 3-aminopropyltriethoxysilane (APTES), and it was used as a magnetic and conductive filler added to the polyurethane urea to create magnetic self-healing polyurethane urea composites (MPUU-MNi). The material self-repaired at 40◦C for 12 h after damage, with a self-healing efficiency of 73%. The initial ultimate stress of MPUU-MNi-10 was 8.08 MPa, and after repair, the ultimate stress of MPUU-MNi-10 recovered to 5.89 MPa. It possesses good magnetic properties, mechanical properties, self-healing performance, and magnetic driving performance. Engineers can acquire knowledge about the most recent developments in electromagnetic shielding, which they can creatively integrate into their projects. Delving into cutting-edge materials and production methods could result in significant product innovation, enhancing their company's market edge.
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2024
·
IF 2.7
Yuan Zhou,Qiang Zhang,Zhaoxia Xia,Zhaojiang Wang,Libin Liu,Yuanzhang Jiang,Yanting Han,Linshen Xie,Lin Tan,Yong Zhang
Blending modification is used to improve the hemocompatibility of cellulose acetate (CA) dialysis membranes while endowing the CA membrane with endotoxin scavenging and antibacterial capabilities. First, polydopamine (PDA) and polyethylenimine (PEI) are used as negatively charged and positively charged moieties, respectively, together with cellulose nanocrystals (CNCs) to construct mixed charge CNCs (PEI-PDA@CNCs). Then PEI-PDA@CNCs is blended with the CA casting solution, and the modified CA dialysis membrane is prepared through a phase inversion process. Through biocompatibility, adsorption, antibacterial, and filtration experiments, various properties of PEI-PDA@CNCs modified CA membrane (PDCA) are systematically tested. The results show that the PDCA membrane exhibited good blood compatibility and noncytotoxicity. At the same time, the PDCA membrane has antibacterial properties and excellent endotoxin adsorption capacity. Compared with the CA membrane, the clearance rates of PDCA membrane for Staphylococcus aureus and Escherichia coli reach 54.0% ± 1.5% and 52.9% ± 5.9% respectively. In the dynamic adsorption experiment, the adsorption capacity of PDCA membrane for endotoxin increases to 2322.1 ± 45.9 EU/g. The research results indicate that PEI-PDA@CNC-modified multifunctional CA membrane with endotoxin adsorption and antibacterial properties has potential application prospects in the fields of hemodialysis and blood purification.
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2024
·
IF 2.7
Zhaoxia Liu,Lili Zhao,Wangwang Tao,Rui Chen,Yu Zhou,Hongxiang Chen,Hongye Yan,Xinghua Liao
In order to obtain a kind of anticancer drug delivery carriers with good stability in blood circulation, high cellular uptake, and controlled drug release ability, folate-modified polyurethane with disulfide bonds and amino groups (FPUSN) and polyurethane with carboxyl groups (PUC) were respectively synthesized. FPUSN and PUC could co-assemble in water to form nanomicelles (FPUSN/PUC) via electrostatic interaction. When the mass ratio of FPUSN to PUC was 12, FPUSN/PUC-12 micelles had obvious negative-to-positive charge-reversal property with decreasing pH from 7.4 to 5.0. Doxorubicin-loaded micelles (FPUSN/PUC-12@DOX) with negative charges showed excellent stability under simulated normal physiological condition. However, the charge-reversal happened at pH 6.5 and positive charges increased with the pH decrease. When the glutathione concentration was 10 mM, the structure of FPUSN/PUC-12@DOX micelles was broken. So FPUSN/PUC-12@DOX micelles exhibited significant acid/reduction-sensitive drug release properties and then DOX could be rapidly released in simulated tumor intracellular environment. Cellular experimental results demonstrated that FPUSN/PUC-12 micelles could enhance cellular uptake under acid condition and FPUSN/PUC-12@DOX micelles had better anti-proliferation effect against HGC-27 cells at pH 6.5 than that at pH 7.4 owing to multi-responsive synergistic effects. Therefore, FPUSN/PUC micelles will have great application potential as drug delivery carriers for enhancing anticancer efficacy.
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2024
·Vol. 141
·期 39
·e56017
·
IF 2.7
Kaiyi Zhang,Sheng'ao Yang,Yinghua Liu,Hao Teng,Yifan Zhang,Faliang Luo
Hydrogels can form physically or chemically interactions with tissues and are widely used in the design of bioadhesive material. Polydopamine (PDA)/polyacrylamide (PAM)-based adhesion hydrogels have emerged as one of the hydrogel adhesive materials with great potential for development. However, this type of hydrogel has low mechanical and adhesion properties, which has certain limitations in practical applications. Herein, inspired by the mussel adhesion mechanism, we introduced PDA into PAM/3-aminophenylboronic acid grafted sodium alginate (SA-PBA) double network system prepared a series of adhesive hydrogels, PDA was crosslinked by dynamic boronic ester bonds with SA-PBA. The experimental results established that the hydrogels have favorable adhesive, anti-fatigue, stretchable, and self-healing properties. Cytocompatibility assay and in vitro hemolysis assay also indicated that the multifunctional hydrogel has excellent cytocompatibility and hemocompatibility.
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2025
·
IF 2.8
Tingting Liu,Ailing Liu,Baijun Liu,Mingyao Zhang
In this study, polydopamine (PDA) was used to modify polystyrene/nickel (PS/Ni) metal composite microspheres prepared by chemical plating technology to obtain PDA@PS/Ni microspheres with a size of 2.45 μm. These microspheres were added to a polyurethane pressure-sensitive adhesive (PSA) matrix, and each anisotropic conductive adhesive (PDA@PS/Ni-ACA) was ultimately obtained by rapid UV curing under room temperature conditions. The effects of different loading amounts on the prepared PS/Ni metal composite microspheres were investigated, and the differences in dispersibility, electrical properties, and mechanical properties between PDA@PS/Ni-ACAs and PS/Ni-ACAs were discussed. Scanning electron microscopy (SEM), thermogravimetric analysis (TGA), high resistivity measurements, and X-ray photoelectron spectroscopy (XPS) were used to characterize the metal composite microspheres and ACAs. When the PDA@PS/Ni content was 3 wt.%, the resistivity was found to be 1.3 × 10 −4 Ω cm, which is 15 orders of magnitude lower than that of pure PSAs PDA@PS, and the tensile strength was as high as 16.21 MPa. The tensile strength of pure PSA is 18.13 MPa, which is higher than that of heat-cured PSA. In addition, the conductive adhesive maintains its anisotropy when the PDA@PS/Ni content is increased to 30 wt.%. These findings will help to expand the application of ACAs in the electronic packaging industry.
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2024
·Vol. 141
·期 13
·e55161
·
IF 2.7
Haofei Sima,Bo Liu,Chunzu Cheng,Chunling Zhang
The construction of conductive network and the design of material structure are the key points of polymer-based shielding materials. Herein, we reported a MXene/PDMS composite foam material with adjustable cell structure and high efficiency electromagnetic interference (EMI) shielding. Few-layered MXene is used as a conductive filler to construct three-dimensional conductive networks by in situ chemical etching. Meanwhile, a series of polystyrene microspheres with different sizes were prepared by applying suspension polymerization method as templates to introduce different cell sizes and densities for PDMS-based materials. The density and EMI shielding performance of composites can be improved by adjusting the cell structure. Compared with the unfoamed MXene/PDMS composites, the composite foam in this work not only reduces the material density greatly but also improves the microwave absorption performance with smaller cell size. This method provides a simple and effective guide for changing material density and absorbing mechanism by introducing cell structure into polymer-based materials in the future.
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2025
·
IF 2.8
Rui Luan,Ziyao Zhao,Yuan Yuan,Chunxia Wang,Mei-Xian Li,Yu Ren
This study aimed to enhance the antibacterial and biocompatible properties of PLA nonwoven materials by plasma-assisted surface decoration with selenium nanoparticles. PLA nonwoven materials were pretreated by plasma surface modification technology for varying durations. Subsequently, Se nanoparticles obtained from the redox reaction of sodium selenite were loaded onto the PLA surfaces through impregnation. SEM images demonstrated that plasma pretreatment enhances the uniformity of Se nanoparticles as well as the contents loaded onto the PLA nonwoven materials. Based on EDS analysis, the relative concentration of Se elements increased with longer plasma pretreatment durations, reaching 6.38% after 6 min of treatment. XPS analysis confirmed the presence of elemental selenium nanoparticles. Furthermore, the results of surface wettability showed that the surface of Se/PLA composites changed from hydrophobic to super hydrophilic after the plasma and Se combined treatment. Moreover, bacterial inhibition of the Se/PLA composites substantially improved with increasing plasma pretreatment time. The Se/PLA composites with 6 min of plasma pretreatment showed the best antibacterial performance and biocompatibility, with inhibition rates against Staphylococcus aureus and Escherichia coli reaching 95.75% and 75.54%, respectively, and cell viability was over 99% for L929 cells. These functionalized Se/PLA composites exhibit tremendous potential for applications in novel antibacterial materials.
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2024
·
IF 2.7
Xiaofei Yan,Zhaoyang Gao,Yehua Shao,Dongming Qi,Bei Wu,Shirong Guo
The frequent occurrence of respiratory infectious diseases has made it difficult for traditional antibacterial materials to meet practical needs in recent years. There was an urgent need to develop new antimicrobial materials with stronger antimicrobial effects and biosafety. In this paper, the carboxymethyl chitosan (CMCTS)/silk fibroin (SF) composite microspheres were synthesized through self-assembly, and the Ag + /CMCTS/SF composite microspheres were prepared by loading the Ag + onto their surface. It investigated the effect of CMCTS contents, SF on the size and secondary structure of CMCTS/SF composite microspheres, and the antibacterial activity and mechanism of Ag + /CMCTS/SF composite microspheres. The results showed that the average particle size distribution size of CMCTS/SF composite microspheres was ranged from approximately 593–1115 nm. When CMCTS was added at 50 wt%, the content of β -sheet structures in silk fibroin microspheres was the largest at 38.6%. And the CMCTS/SF composite microspheres loaded with Ag + enhanced the bactericidal rate against Escherichia coli and Staphylococcus aureus by 27.51% and 36.39%, respectively. In addition, the Ag + /CMCTS/SF composite microspheres have high biological safety, providing a new method for designing an efficient, green, and safe composite antibacterial agent.
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2025
·
IF 2.8
Jianrong Zhao,Xinlin Li,Fuxin Liu,Wenying Zhao,Songling Chen
The development of temperature-responsive coated urea from sustainable, environmentally friendly bio-coatings has garnered increasing research attention owing to concerns regarding global food security and environmental sustainability. In this study, naturally derived coated urea with temperature-responsive behavior (SNCU) was fabricated using castor oil/polycaprolactone (PCL2000) blends and isocyanate, nano-SiO 2 and siloxane were employed to enhance its hydrophobicity. Nutrient (N)-release experiments were conducted at various temperatures to explore the temperature-responsive behavior of the coated urea. The temperature-response mechanism and composition of the coated urea were investigated using x-ray diffraction (XRD), x-ray photoelectron spectroscopy (XPS), simultaneous thermal analysis (DSC), and Fourier-transform infrared (FT-IR) spectroscopy. Results indicated that PCL2000 incorporation could produce a block polymer with a two-phase structure consisting of a crystalline and an amorphous phase, and the SNCU exhibited a significant temperature switch at 32.5°C. Moreover, the N-release SNCU longevity increased to 70 days. Therefore, the findings from this work highlight that temperature-responsive SNCU, with its higher N availability, could be suitable for agricultural applications in sustainable, green agricultural development.
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高影响因子
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