PROGRESS IN ORGANIC COATINGS
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2025
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IF 7.3
Mingjun Zou,Guangkai Jin,Xinwei Wang,Yikun Ji,Bin Liu,Shujuan Liu,Qian Ye,Feng Zhou
Hydrogels show great potential for marine antifouling, but their low mechanical strength and limited antifouling effectiveness hinder their broader application. Herein, the 3-sulfopropyl methacrylate potassium (SPMA) polymer brushes layer was grafted onto MXene, followed by in situ reduction to form silver nanoparticles (AgNPs) with an average particle size of about 10 nm. The resulting 0D/2D MXene-SPMA@Ag nanosheets exhibit effective antifouling capabilities, with antibacterial and algal removal rates exceeding 90 %. Meanwhile, composite antifouling hydrogels were developed by incorporating functionalized nanosheets into the hydrogel matrix. The incorporation of MXene-SPMA@Ag significantly enhanced mechanical strength, anti-swelling behavior, and friction reducing properties of the hydrogels. Compared to the blank hydrogel, the mechanical properties of the composite hydrogel were significantly improved, with the tensile strength increasing from 99 KPa to 238 KPa and the strain rising from 517 % to 861 %. In addition, MXene-SPMA@Ag/Gel showed excellent antifouling performance, with an antimicrobial activity approaching 100 % and an algae removal rate exceeding 90 %. These improvements were attributed to the synergistic effect between the MXene-SPMA@Ag nanosheets and the hydrogel.
研究领域:
材料科学
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生物医学工程
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产品关联
DOI
高影响因子
POLYMERS FOR ADVANCED TECHNOLOGIES
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2018
·Vol. 29
·期 6
·1788-1794
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IF 2.137
Si Chen,Bo Zhou,Meng Ma,Yanqin Shi,Xu Wang
Permanently antistatic and high transparent PMMA terpolymer, P(MMA-co-HPA-co-SPMA), were reported in this paper, providing a new method to significantly improve the antistatic properties of PMMA without sacrificing transparency. 2-Hydroxypropyl acrylate (HPA) was chosen as a kind of compatilizer because of the good compatibility with both methyl methacrylate (MMA) and sulfopropyl methacrylate potassium salt (SPMA), a potential antistatic agent with a strong hydrophilic group. The mechanical and optical properties of P(MMA-co-HPA-co-SPMA) terpolymer barely show any visibly differences compared to PMMA homopolymer, confirmed through Fourier transform infrared, dynamic mechanical analysis, and a haze meter. Furthermore, antistatic property analysis indicates that only a small amount of SPMA can significantly improve the antistatic properties of the obtained PMMA terpolymers. The surface resistivity of the P(MMA-co-HPA-co-SPMA) sheets could be reduced to 10 9 Ω sq −1 order of magnitude, while the SPMA content reached 0.72 wt%. The hydrophilic groups, the hydroxyl and acrylate sulfonate, on the surface contributed to attract the water molecules, which rendered it a reasonably good antistatic property. These selected terpolymers will provide more opportunities to develop high-performance and antistatic products made from PMMA materials.
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
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2025
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IF 2.8
Yuanpeng Cai,Danyang Li,Yufei Ling,Huihui Jiang,Hui Liu
A novel triple-responsive composite hydrogel, p(NIPAM-co-MAA-co-SPMA), was designed and synthesized via free radical polymerization, incorporating N-isopropylacrylamide (NIPAM) for temperature responsiveness, methacrylic acid (MAA) for pH sensitivity, and spiropyran methacrylate (SPMA) for light responsiveness. This study aimed to develop a novel stimuli-responsive sustained release drug delivery system. The composition and structure of the hydrogel were characterized by nuclear magnetic resonance spectroscopy (NMR), Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS), and scanning electron microscopy (SEM). Doxorubicin (DOX) was used as a model drug to evaluate loading and release behavior. The hydrogel achieved a drug loading content (DLC) of 25.7% and a drug loading efficiency (DLE) of 74.3% and enabled controlled release with approximately 89% cumulative DOX release within 6 h under combined thermal, acidic, and ultra-violet light stimuli. Cytotoxicity assays and cellular uptake studies confirmed the excellent biocompatibility of the hydrogel and its efficacy in suppressing cancer cell growth. These results highlight the potential of p(NIPAM-co-MAA-co-SPMA) as an intelligent platform for on-demand targeted anticancer therapy.
研究领域:
高分子材料科学
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肿瘤学
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药物递送系统
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生物医学工程
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智能药物释放
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纳米医学
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产品关联
DOI
高影响因子
POLYMER
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2022
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IF 4.432
Congcong Cui,Guojie Liu,He Gao,Min Wang,Jun Gao
A photo and thermal-responsive smart polymer, enabling controllable wettability according to different temperature and light conditions, was developed in this paper. The 3-(3′,3′-dimethyl-6-nitrospiro-[chromene-2,2′-indolin]-1′-yl) propyl methacrylate (SPMA) and N -isopropylacrylamide (NIPAAm) by 2,2′-azobis(isobutyronitrile) (AIBN) were grafted on the surface of polydimethylsiloxane (PDMS) to induce free radical polymerization . The SPMA isomerizes from a colorless, hydrophobic spiropyran (SP) form to a deep purple, hydrophilic merocyanine form (MCMA) upon UV-light. The wettability of poly( N -isopropylacrylamide) (PNIPAAm) is sensitive to temperature, showing hydrophobicity above the low critical solution temperature (LCST) and hydrophilicity below LCST. Furthermore, the addition of SPMA has realized the significant reversible wettability synergistic with PNIPAAm. The reversible wettability can be controlled by selectively applying single or both factors of light and temperature. Thus, practical application of the above controllable wettability can be greatly expanded. When the polymer is transferred from 40 °C (>LCST)-visible light to 10 °C (
研究领域:
材料科学
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聚合物化学
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表面科学
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产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）