JOURNAL OF APPLIED POLYMER SCIENCE
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2016
·Vol. 133
·期 30
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IF 1.866
Wei Gong,Meilan Li,Yunxiao Zang,Hao Xie,Bailing Liu,Hualin Chen
In order to control the impacts of blown sand in salty desert, in this article, the amphoteric emulsion, for the first time, was applied as an ecological sand-fixing material. This study started from the synthesis of the poly{vinyl acetate-dibutyl maleate-acrylamide-co-3-[ N -(2-methacroyloylethyl)- N, N -dimethylammonio]-propane sulfonate} [P(VAc-DBM-AM-DMAPS)] copolymer emulsion. Then, the structures, composition, thermal property of the emulsion were characterized by 1 H-NMR, FTIR, and DSC, respectively. The basic properties of the emulsion and salt tolerance of the latex films were measured by using viscometer, dynamic light scattering, and laser Doppler electrophoresis also. And the sand-fixing properties of the emulsion were evaluated. Finally, the influence of the emulsion on the growth of soil microbe and plants were discussed for understanding its ecological effect. The experimental results showed that the emulsion has been successfully synthesized and could be as an ecological sand-fixing material. The related reason is that, first, the emulsion could significantly improve the compressive strength and water retaining; second, the emulsion had good thermal aging, freeze-thaw stabilities and salt tolerance to withstand the changes in temperature and NaCl concentration of salty desert; third, the influence of the emulsion on the growth of plants and microbe of sand also showed a dependable ecological effect. © 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016 , 133 , 43715.
研究领域:
材料科学
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环境科学
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生态学
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DOI
高影响因子
JOURNAL OF BIOACTIVE AND COMPATIBLE POLYMERS
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2017
·
IF 1.31
Huanhuan Ren,Zhankui Mei,Yangyang Chen,Shaojun Chen,Zaochuan Ge,Jinlian Hu
In order to prepare acrylamide copolymers with non-toxicity for environment-friendly materials, a series of zwitterionic acrylamide copolymers with varying acrylamide content were synthesized with DMAPS (3-dimethyl (methacryloyloxyethyl) ammonium propane sulfonate) and acrylamide via free radical polymerization. The structural properties and cytotoxicity are carefully investigated. The results demonstrate that DMAPS-co-acrylamide copolymers contain DMAPS and acrylamide segments that form a matrix consisting of strong electrostatic interactions as well as strong hydrogen bonding. DMAPS segments exhibit negligible influence on the glass phase transition behavior, yet affect the composite’s water-contact angle. The optimum hydrophilic properties are obtained by adjusting the acrylamide content to 50 wt%. All DMAPS-co-acrylamide copolymers are measured to be non-toxic. The DMAPS segments allow for suitable contribution to the biocompatibility of the synthesized copolymer, in which copolymers containing higher DMAPS content demonstrate better biocompatibility.
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
INTEGRATED FERROELECTRICS
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2019
·
IF 0.486
Yi-Xin Zhang,Hao Hu,Yao Chen,Hai-Lin Cong,You-Qing Shen,Bing Yu
The ability to manipulate and control the inner surface properties of silica capillary is of crucial importance for analysis of proteins by capillary electrophoresis. In this work, surface-initiated atom transfers radical polymerization (ATRP) of zwitterionic 3-dimethyl(methacryloyloxyethyl) ammonium propane sulfonate (DMAPS) is employed to tailor the functionality of silica capillary in a well-controlled manner. The structure of the coating and the protein separation performance were investigated. The results confirmed that the P(DMAPS) grafting can substantially enhance the performance of the capillary columns. With the versatility of surface-initiated ATRP and the excellent performance of zwitterionic polymer chains, the zwitterionic polymer coated capillary columns can be readily tailored for analysis of proteins by capillary electrophoresis.
研究领域:
分析化学
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生物化学
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DOI
高影响因子
RSC Advances
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2015
·Vol. 5
·期 42
·33083-33088
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IF 3.84
He Liu,Chunming Xiong,Zhen Tao,Yujiao Fan,Xiaofen Tang,Haiyang Yang
Self-healing systems that can spontaneously repair their damage would significantly improve the safety and prolong the lifetime of man-made materials. As external energy or healing agents are required in most of the self-healing approaches, non-covalently cross-linked polymeric hydrogels with intrinsic healing nature have attracted much attention recently. We present here a P(AM-co-DMAPS) zwitterionic copolymer based self-healing hydrogel, where AM and DMAPS are acrylamide and 3-((2-(methacryloyloxy)ethyl)dimethylammonio)propane-1-sulfonate, respectively. The electrostatic interactions within DMAPS and hydrogen bonding between AM moieties contribute to the physical cross-linking of the polymer chains and self-healing ability of the hydrogel. The reported strategy represents a general and facile route to construct zwitterionic copolymer based self-healable functional hydrogels for potential applications in the field of enhanced oil recovery (EOR).
研究领域:
材料科学
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聚合物化学
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自修复材料
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DOI
高影响因子
POLYMERS FOR ADVANCED TECHNOLOGIES
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2017
·Vol. 28
·期 11
·1464-1472
·
IF 1.907
Zhankui Mei,Huanhuan Ren,Shaojun Chen,Zaochuan Ge,Jinlian Hu
This study develops a new type of moisture-sensitive shape memory polymer based on zwitterionic copolymers synthesized with acrylic acid (AA) and 3-Dimethyl (methacryloyloxyethyl) ammonium propane sulfonate (DMAPS). The moisture absorption properties of zwitterionic copolymers are particularly investigated in this paper. The results demonstrate that the DMAPS/AA copolymers possess a sulfobetaine structure and form a two-phase separation structure. The zwitterionic copolymers show both good hydrophilic properties and moisture absorption properties. Both AA and DMAPS segments influence the hydrophilic properties and moisture absorption of the composite copolymer. The moisture absorption process is well modeled by Fick's second law in its initial stage. The moisture absorption is mainly determined by immersion conditions and the given materials' structure. Moisture absorption speed and saturated moisture absorption both increase with an increase in DMAPS content as well as the immersion temperature. The increased moisture absorption rate and higher saturated moisture absorption results from the higher activation energy of diffusion. The DMAPS/AA copolymers demonstrate adequate moisture-sensitive shape memory effects. Stain recovery is faster in the zwitterionic copolymers containing higher DMAPS content, whereas the final shape recovery decreases with an increase of DMAPS content. Finally, it is proposed that not only good moisture absorption units are required but also physical crosslinks should be improved for moisture-sensitive shape memory polymers. Copyright © 2017 John Wiley & Sons, Ltd.
研究领域:
高分子材料科学
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功能高分子
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智能响应材料
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生物医用材料
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软物质物理
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环境响应材料
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DOI
高影响因子
ACS Sustainable Chemistry & Engineering
·
2024
·
IF 7.1
Yutong He,Shaochao Sun,Xinxu Zhang,Ying Xu,Chen Zhang,Changyou Shao,Jun Yang,Jialong Wen
Hydrogel holds great promise as a strain sensor for flexible electronics. However, traditional hydrogel polymerization processes are hindered by extensive time and energy demands. Additionally, the inadequate adhesion of hydrogel sensors to human skin in extreme conditions often results in signal instability and inaccuracy. To address these challenges, herein, a novel lignin-assisted self-catalytic system (lignin-Fe3+) has been developed to rapidly fabricate self-adhesive and antifreezing multifunctional zwitterionic hydrogels (L-Fe@HE-AA/DMAPS hydrogels) in a water (H2O)–ethylene glycol (EG) solution. The incorporation of EG and zwitterionic [2-(methacryloyloxy) ethyl] dimethyl-(3-sulfopropyl) ammonium hydroxide (DMAPS) endows the hydrogels with remarkable anti-freezing property over a wide temperature range from −60 to 60 °C, enhanced non-drying properties (73.7% retention), excellent self-adhesion (110.0 ± 3.1 kPa on paper), and excellent mechanical properties (236.15 kPa fracture stress, 556.8% fracture elongation). Leveraging the comprehensive integration of these properties, the zwitterionic hydrogels were assembled as strain sensors, exhibiting high sensitivity (Gauge factor = 6.044), fast response (198 ms), and impressive signal stability. The design of L-Fe@HE-AA/DMAPS hydrogels via a lignin-Fe3+ self-catalytic system and zwitterionic DMAPS presents a promising strategy for practical applications in skin strain sensors.
研究领域:
材料科学
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高分子科学
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生物医学工程
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纳米技术
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传感技术
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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）