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首页> 外文期刊>Journal of Applied Polymer Science >Study on the Synthesis of Poly(methyl methacrylate)-Poly(methacrylic acid) Composite Latex and Their Humidity Sensitive Properties
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Study on the Synthesis of Poly(methyl methacrylate)-Poly(methacrylic acid) Composite Latex and Their Humidity Sensitive Properties

机译：聚（甲基丙烯酸甲酯）-聚（甲基丙烯酸）复合胶乳的合成及其湿敏性能的研究

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摘要

The composite latex particles of poly(methyl methacrylate)-poly-(methacrylic acid) [poly(MMA-MAA)] were synthesized through either soapless seeded emulsion polymerization or a soapless emulsion copolymerization technique.The reac-tion kinetics,morphology,and size of latex particles,composition,glass transition temperature (T_g),and molecular weight of polymer products were studied under different experimental conditions.Moreover,this work also focused on the humidity-sensitive properties of the polymer films fabricated by melting under the temperature of 200degC and followed by chemical modification with aqueous solution of NaOH.It is confirmed that there exists both an optimum ratio of hydrophilic to hydrophobic monomers and the initial structure of the latex particle to provide the humidity-sensitive polyelectrolyte film with excellent water resistivity and good sensitivity to humidity.Besides,little hysteresis and quick response were observed.
机译：通过无皂种子乳液聚合或无皂乳液共聚技术合成了聚（甲基丙烯酸甲酯）-聚（甲基丙烯酸）[聚（MMA-MAA）]复合乳胶颗粒。反应动力学，形貌和尺寸在不同的实验条件下研究了乳胶颗粒的组成，组成，玻璃化转变温度（T_g）和分子量。此外，这项工作还着眼于在200℃下熔融制得的聚合物薄膜对湿度的敏感性。证实了既存在亲水单体与疏水单体的最佳比例，又存在乳胶颗粒的初始结构，从而为湿敏性聚电解质膜提供了优异的耐水性和良好的感光性。此外，还观察到了小滞后和快速响应。

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