JOURNAL OF APPLIED POLYMER SCIENCE
·
2018
·Vol. 136
·期 2
·47016
·
IF 1.901
R. Wang,G. Ye,W. Zhou,F. Jiang,Y. Wu,J. Hou,D. Li,J. Wu,Y. Chang,A. Liang,J. Xu,Y. Du
The electron-donating substituted indole is generally difficult to be polymerized into high-quality film. The electrochemical polymerization of the electron-donating 3,4-ethylenedioxythiophene (EDOT)-monosubstituted indole may be a challenge. Herein, we designed and synthesized a novel fluorescent comonomer based on the combination of indole and EDOT groups, namely, 5-(2,3-dihydrothieno[3,4- b ][1,4]dioxin-5-yl)-1 H -indole (EDTI), and subsequently electrodeposited into flawless freestanding flexible poly(5-(2,3-dihydrothieno[3,4- b ][1,4]dioxin-5-yl)-1 H -indole) (PEDTI) film with a resistance of 60 MΩ/cm in CH 2 Cl 2 containing 0.1 M Bu 4 NBF 4 . Electrochemical results showed that the oxidation onset potential of EDTI was at 0.8 V vs Ag/AgCl, which was lower than those of indole (0.96 V vs Ag/AgCl) and EDOT (1.35 V vs Ag/AgCl). FTIR spectra indicated that the polymerization of EDTI occurred at the 5-position on thiophene ring and 2,3-positions on indole ring, forming the crosslinking polymer film. The colors of as-prepared PEDTI could switch reversibly from purple to brown under applied potentials of 1.3 and −1.3 V, which were distinctly different from those of polyindole, poly(3,4-ethylenedioxythiophene) (PEDOT), and poly(EDOT-bis-substituted indole) (PETI). Fluorescence spectral studies revealed that the comonomer and corresponding polymer were good blue-green light emitters. These results implied that PEDTI had potential applications for photoelectric devices such as electrochromic devices, light-emitting diodes, and fluorescence sensors. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019 , 136 , 47016.
✓ 已验证
DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2021
·Vol. 139
·期 9
·51699
·
IF 3.125
Hong Zhang,Xiaoling Niu,Shengbo Zhu,Min Tian,Weiguo Liu
Tetraphenylethylene (TPE) derivatives were studied intensively owing to their excellent aggregation-induced emission (AIE) behavior, facile synthesis, easy functionalization, and thermal stability. Herein, oligomer methylacryloyl tetraphenylethylene (TPE-MA) containing precise number of AIE luminogens was synthesized facilely by introducing methylacryloyl group onto the phenyl ring of TPE and polymerizing the monomer. The structures of TPE-MA and its oligomer were characterized by nuclear magnetic resonance spectroscopy, mass spectra, Fourier transform infrared spectrometer, and gel permeation chromatograph. The relationship between chemical structures and the photophysical properties were investigated from the aspect of UV–vis absorption, fluorescent emission spectra, (AIE property, electrochemical properties, and density functional theory studies. The results showed that the emission intensity of the oligomer TPE-MA was enhanced by twice bigger than that of its monomer, and the maximum emission wavelengths were observed red-shifted, when TPE was converted to TPE-MA monomer and its oligomer. The oligomer solution spots on the thin layer chromatography plates can be turned “off” and “on” continuously and reversibly by dichloromethane vapor, which endows the material with high sensitivity, capable of detecting volatile organic compounds.
✓ 已验证
DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2015
·Vol. 133
·期 7
·
IF 1.768
Ying Li,Ting Yu,Zuojia Li,Zhenguo Wang,Qiang Peng
In this study, two main-chain second-order nonlinear optical (NLO) polyurethanes were successfully prepared with indole-based chromophores. The introduced phenyl isolation group and the continuous zigzag polymer backbone were found to be helpful for effectively decreasing the intermolecular dipole–dipole interactions and enhancing the NLO properties of the resulting polymers. The studied polymers exhibited good optical transparency, high thermal stability, and excellent NLO effects; this indicated that the nonlinearity–stability trade-off and nonlinearity–transparency trade-off could be alleviated by this newly designed polymer system. Poly{4-anilinocarbonyl[ N -ethoxyl-5-phenyl-3-azo(2′-oxyethylene-4′-nitrobenzene)indole]carbonylimino} with a zigzag backbone showed a large second harmonic generation coefficient ( d 33 ) value of 88.4 pm/V. However, poly{5-naphthyliminocarbonyl[ N -ethoxyl-5-phenyl-3-azo(2′-oxyethylene-4′-nitrobenzene)indole]carbonylimino} (PUAZN) with a continuous zigzag structure exhibited a higher d 33 value of 116.2 pm/V, which was attributed to the unique rigid and zigzag linkage of 1,5-naphthalene as the isolation spacer. The enhanced NLO efficiency and relatively longer term temporal stability made PUAZN as a promising candidate for practical applications in photonic devices. © 2015 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016 , 133 , 42974.
✓ 已验证
DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2017
·Vol. 135
·期 6
·45793
·
IF 1.86
Haiying Wang,Guowei Wang,Chunlin Zheng,Tijian Zhou,Jie Sun
To realize the low-temperature dyeing of wool fibers, the use of auxiliaries and wool modification are common methods. Low-temperature auxiliaries may cause water-pollution problems, and wool modification is a costly and uncontrollable process. In this study, new acid dyes, named D1–D3, containing polyetheramine groups were synthesized and applied to wool fiber by conventional and low-temperature exhaust dyeing procedures. The results indicate that the new acid dyes could interact with wool-fiber-like auxiliaries and render a high exhaustion rate to the wool fiber at a dyeing temperature of 80 °C. In comparison with Acid Blue 25, the D1–D3 dyes showed an increased dyeing rate, especially under a dyeing temperature of 80 °C. Despite the bigger relative molecular masses of D1–D3, the exhaustion rates of D1–D3 were still higher, and the times of half-dyeing were shorter than that of Acid Blue 25. The color differences between the wool fabrics dyed with the four dyes at 80 and 98 °C, respectively, were compared. We found that the color differences of D1–D3 between 80 and 98 °C were smaller than that of Acid Blue 25. The interactions between the dyes and wool fiber were analyzed and manifested by the measurement of the ζ potential of the dyes and wool fiber. The leveling and transfer properties of the D1–D3 dyes were also investigated, and the color differences of the wool fabrics dyed with Acid Blue 25, D1, and D2 were very low at all measured pH values and temperatures. The fastnesses of D1–D3 on wool fabric were almost the same as that of Acid Blue 25. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018 , 135 , 45793.
✓ 已验证
DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2020
·Vol. 138
·期 6
·49806
·
IF 2.52
Dexin Chen,Zhixin Kang,Wei Li
Here, thin Ag films with excellent properties were successfully prepared on flexible substrates through surface grafting and assembling followed by simple spray-assisted deposition process. The constructed molecule brushes provide the interfacial adhesion for Ag layers onto polymer substrates. The mechanical and electrical properties of the conductive Ag coated PET could be tuned by changing the spraying passes. As the electromagnetic interference shielding material, the composite PET possesses a highest shielding efficiency of 45 dB. In addition, the Ag coated PET with the thickness of 0.1 mm would maintain the 72% electrical conductivity even been folded even at a minimum diameter of 0.2 mm. It was demonstrated that uniform and fine cracks would generate when the Ag coated PET was stretching, but Ag films still retain continuous networks to maintain the high electronic conductivity even stretching to 100%. Simple finite element modeling results prove that the stress by stretching would concentrate in corner of the crack and the deformation is mainly at stress side. The Ag layers were also produced on TPU substrates to detect the stretching, showing its potential applications for strain sensors and health monitoring systems.
✓ 已验证
DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2018
·Vol. 136
·期 12
·47232
·
IF 1.901
Gang Wang,Lichun Ma,Xiaobing Yang,Xiaoru Li,Ping Han,Chao Yang,Longliang Cong,Wenzhe Song,Guojun Song
Hyperbranched aromatic polyamide (HBP) was grafted successfully onto carbon fibers (CFs) on the basis of solution polymerization to enhance the interfacial adhesion strength of CF-reinforced epoxy resin composites. The microstructure and interfacial properties of the CFs before and after decoration were researched. The results indicate that HBP was deposited uniformly onto the CFs with γ-aminopropyl triethoxysilane as the bridging agent. The active groups, roughness, and surface energy of the modified fiber [hyperbranched aromatic polyamide grafted carbon fiber (CF–HBP)] increased visibly in comparison with those of the untreated CFs. The CF–HBP composites revealed simultaneous remarkable enhancements (65.3, 34.3, and 84.8%) in their interfacial shear strength, flexural strength, and modulus, respectively; this was attributed to the improvement in the fiber–epoxy interface through enhanced chemical interactions, mechanical interlocking, and wettability. These agreed with the scanning electron microscopy observations from the fracture surface morphologies of the composites. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019 , 136 , 47232.
✓ 已验证
DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2025
·
IF 2.8
Wutao Liu,Bo Zhang,Jin Zhao,Xubo Yuan
Hemostasis of noncompressible wounds represents a significant challenge in surgical medicine and trauma care. Unlike compressible wounds, noncompressible wounds pose considerable difficulties in applying effective external pressure, identifying and managing bleeding sites, and are characterized by a high risk of hemorrhage and complex wound morphology. Currently available hemostatic materials possess certain hemostatic capabilities but are often limiting, including inadequate mechanical strength, suboptimal hemostatic efficacy, and lack of adaptability to complex wound geometries. These limitations prevent them from fully addressing the clinical needs of noncompressible wound management. We developed an injectable hydrogel with high hemostatic efficiency, excellent mechanical properties, and the ability to adapt to complex wound morphologies. The hydrogel was synthesized using the cationic monomer 3-(methacryloylamino)propyltrimethylammonium chloride and acrylamide to form a PMPTC-AAM hydrogel (PMA). PMA microgel particles with polyethylene glycol (PEG) as the solvent were injected into the wound, where solvent exchange occurred to form the gel. In vivo experimental results demonstrated that PMA could achieve rapid hemostasis for penetrating noncompressible wounds within 30 s, effectively accommodating complex wound morphologies. In conclusion, the injectable hydrogel suspension formed by mixing PMA with PEG undergoes solvent exchange to reorganize into a gel, showing significant potential for managing irregularly shaped, noncompressible wounds.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2025
·
IF 2.8
Runhe Jia,Shuaibing Wang,Shulu Wang,Guangyan Du,Jintao Yang
Slickwater fracturing technology as a key means of the efficient shale gas development, relies on polymer molecular chains to reduce turbulent vortices and suppress radial flow fluctuations, thereby lowering fluid frictional drag and enhancing axial transport efficiency. However, conventional linear polymers fail to achieve the “shear thinning-static thickening” of the rheological response, still facing technical bottlenecks such as insufficient viscosity and poor flexibility in flow state transition during deep applications, which limits their fracturing effectiveness in deep shale gas reservoirs. Herein, we developed a tetrameric acrylamide-based polymer, polygamas (AM/AMPS/AA/SMA), via two-phase dispersion polymerization for deep shale gas development. Its hydrophobic groups form a dynamic physical crosslinking network, significantly enhancing tackifying ability. By adjusting the concentration, polyAMAS can freely switch between low-viscosity slickwater and high-viscosity gel fluid, effectively resolving the conflict between friction reduction and proppant-carrying performance. Static proppant-suspension tests showed that under high sand ratio conditions, the solution's settling rate was 0.174 mm/s, meeting the requirements of real-time mixing fracturing operations. The developed acrylamide-based emulsion, integrating friction reduction, proppant transport, and viscosity enhancement, effectively overcomes the key technical challenge of balancing high-efficiency friction reduction and stable proppant-carrying in conventional fracturing fluids, demonstrating significant potential for deep shale gas development.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2025
·Vol. 142
·期 41
·e57580
·
IF 2.8
Qingyuan Chen,Maofan Ye,Dongdong Wang,Xing Yin,Wanfen Pu
Resistance factor (R f ) and residual resistance factor (R ff ) are key metrics for evaluating polymer mobility control. This study examines the performance of hyperbranched polymer HPDACS in porous media under varying permeability, concentration, flow rate, temperature, and salinity conditions, analyzing its R f /R ff establishment capability and postflow viscosity/particle size changes. Results show Rf and Rff increase with concentration (1500 mg/L: R f > 35%, R ff > 20%) but decrease with higher permeability, flow rate, temperature, and salinity. After porous media shear, HPDACS maintains > 40% viscosity retention, with particle size shifting smaller—more pronounced at lower permeability. Subsequently, core flooding experiments were conducted to evaluate oil displacement efficiency at different injected pore volumes (PV). Microscopic imaging and nuclear magnetic resonance (NMR) displacement experiments were used to visualize HPDACS’ displacement behavior. The tests demonstrated HPDACS’ exceptional performance: 0.3 PV injection in 327 mD cores boosted recovery by 19.20%, showing effective residual oil mobilization. Microscopy revealed improved sweep efficiency, while NMR quantified 28.41%, 29.85%, and 19.43% recovery increases in micropores, mesopores, and macropores, respectively. These findings confirm HPDACS’ strong potential for enhancing oil recovery in heterogeneous, low-medium permeability reservoirs through stable displacement fronts and pore-scale residual oil extraction.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2025
·Vol. 142
·期 43
·e57676
·
IF 2.8
Li Dang,Jia Liu,Xinyi Bao,Yongkui Zheng,Zhihui Lv
To enhance the interfacial compatibility and fire safety of polyvinyl chloride (PVC)/molybdenum trioxide-doped magnesium hydroxide (MO@MH) composites, three chain-length-varied silicon-phosphorus polyether modifiers (ABP 200 , ABP 1000 , and ABP 2000 ) were synthesized and characterized. Magnesium-molybdenum-silicon-phosphorus multicomponent flame retardants (MO@MHABP) were subsequently prepared via wet modification. The chain-length-dependent mechanical behavior of PVC composites was systematically evaluated through combined experimental characterization and molecular dynamics (MD) simulations. Static mechanical tests revealed that yield strength, tensile strength, and impact strength of PVC/MO@MH composite were all improved by inducing ABP modifiers, with the shortest-chain ABP 200 showing optimal enhancement. Dynamic mechanical analysis revealed increased storage/loss modulus and glass transition temperatures for PVC/MO@MHABP, indicating restricted chain mobility. Interface interaction models (Turcsányi equation and Kubát model) combined with MD simulations demonstrated that the shortest-chain modifier (ABP 200 ) enhanced interfacial adhesion through the strongest Cl–NH interactions (supported by the most negative Δ E values). Cone calorimetry tests indicated that ABP modification decreased the heat release rate and total heat release of PVC/MO@MH composites but did not significantly improve smoke suppression. This study provides valuable insights into interfacial regulation and performance optimization in PVC composites.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2025
·Vol. 142
·期 42
·e57638
·
IF 2.8
Sen Li,Hao Chen,Chen Zhao,Jinlin He,Lijing Zhang
Ion-conducting elastomers (ICEs) hold broad application prospects in the field of flexible electronics. A self-adhesive conductive elastomer (abbreviated as PCAPS X ) containing phosphorus and nitrogen elements, with both hydrogen bonding and electrostatic interaction, has been synthesized via one-pot UV-initiated radical polymerization. Chemical structures were characterized using various techniques. The limiting oxygen index (LOI) and cone calorimeter testing (CCT) demonstrate that this elastomer exhibits excellent flame retardancy. The elastomer, as a consequence of the dual action of hydrogen bonding and electrostatic interaction, exhibits excellent properties such as outstanding elasticity (> 1550%), high transparency (> 90%), durability, and tear-resistance (breaking strength and toughness up to 1.2 MPa and 9.42 MJ m −3 ). Further, it can interact with various interfaces and adhere firmly to a substrate, maintaining good adhesion reliability. The application of PCAPS X in strain sensors indicates that this elastomer has good cyclic stability and exhibits repeatable and stable resistance change signals in response to the repeated bending motions of a finger, an elbow, or a knee. A simple strategy for the development of flame-retardant ICEs, which can effectively reduce fire hazards and has the potential to be applied in other fire-prone areas, such as wearable devices and flexible sensor devices, has been demonstrated.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2025
·Vol. 142
·期 43
·e57679
·
IF 2.8
Wenchao Shi,Xuanlin Li,Shili Zhao,Tian He,Bi Yang,Beibei Chen
Developing low-friction, high wear-resistant epoxy-based self-lubricating composites is crucial for reducing friction and wear in transmission components of advanced equipment. However, the shortcomings of brittleness in hence and poor wear resistance of epoxy limit its tribological application under harsh sliding conditions. In this study, the nanohybrid of h-BN nanosheets (BNNSs)-supporting-α-Fe 2 O 3 was designed to harness their synergistic reinforcement and lubricating effect on the tribological performance of epoxy. The feature of α-Fe 2 O 3 /BNNSs was analyzed, and its tribological enhancement on epoxy nanocomposites was explored systematically. Results demonstrated that the α-Fe 2 O 3 of size less than 50 nm was uniformly loaded on the BNNSs surface to form a rough microstructure, which was conducive to perfecting the interfacial compatibility of the epoxy composite. Moreover, the α-Fe 2 O 3 /BNNSs significantly improved the capacity for antifriction and anti-wear of epoxy. Only by filling 0.7 wt% α-Fe 2 O 3 /BNNSs, the coefficient of friction (COF) of the corresponding composite coating was reduced by 85.1%, and its wear rate was significantly reduced, nearly 96.7%. More importantly, the epoxy-0.7 wt%α-Fe 2 O 3 /BNNSs kept reasonable tribological performance under high loads/speeds. By analyzing the worn surface of friction pairs, the tribological synergism of α-Fe 2 O 3 /BNNSs on epoxy coatings was discussed. This study might offer novel insights into the design of high-performance epoxy self-lubricating nanocomposite coatings.
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）