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首页> 外文期刊>Journal of Applied Polymer Science >Terpolymer films having semipolar structure: Preparation, wettability, and mechanical properties
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Terpolymer films having semipolar structure: Preparation, wettability, and mechanical properties

机译：具有半极性结构的三元共聚物薄膜：制备，润湿性和机械性能

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摘要

A terpolymer, obtained by the free-radical terpolymerization of 2-(N,N-dimethylamino)ethyl methacrylate (DMMA), methyl methacrylate(MMA), and isobutyl methacrylate (IBMA), was allowed to react with hydrogen peroxide, chloroacetic acid, and diethyl sulfate to form the corresponding modified terpolymers: (1) N,N-dimethyl-N-(2-methacryloyloxyethyl)amine N-oxide, MMA and IBMA (DMANO series); (2) N-(carboxymethyl)-N,N-dimethyl-N-(2-methacryloyloxyethyl)ethyl ammonium, MMA and IBMA (CDME series); and (3) N-(ethyl)-N,N-dimethyl-N-(2-methacryloyloxyethyl)ethyl ammonium ethylsulfonate, MMA and IBMA (EDMEES series), respectively. The terpolymer compositions were determined using C-13 NMR spectrometry. Surface free energies of the terpolymers were estimated by measuring the contact angles of water and methylene iodide on the three series films (DMANO, CDME, and EDMEES), and the effect of the N-oxide group on wettability was discussed. It was found that the upper surface of the films for the DMANO and CDME series are more hydrophobic than that for the EDMEES series. Notably, elongation to break for the DMANO series was relatively larger than that for the CDME series because of the water bound to the N-oxide functional group. (c) 2005 Wiley Periodicals, Inc.
机译：使通过甲基丙烯酸2-（N，N-二甲基氨基）乙酯（DMMA），甲基丙烯酸甲酯（MMA）和甲基丙烯酸异丁酯（IBMA）的自由基三聚获得的三元共聚物与过氧化氢，氯乙酸反应，硫酸二乙酯形成相应的改性三元共聚物：（1）N，N-二甲基-N-（2-甲基丙烯酰氧基乙基）胺N-氧化物，MMA和IBMA（DMANO系列）; （2）N-（羧甲基）-N，N-二甲基-N-（2-甲基丙烯酰氧基乙基）乙基铵，MMA和IBMA（CDME系列）; （3）分别是N-（乙基）-N，N-二甲基-N-（2-甲基丙烯酰氧基乙基）乙基乙基磺酸铵，MMA和IBMA（EDMEES系列）。使用C-13 NMR光谱法测定三元共聚物的组成。通过测量水和二碘甲烷在三个系列膜（DMANO，CDME和EDMEES）上的接触角来估算三元共聚物的表面自由能，并讨论了N-氧化物基团对润湿性的影响。发现DMANO和CDME系列的膜的上表面比EDMEES系列的膜的上表面更疏水。值得注意的是，由于水结合到N-氧化物官能团上，所以DMANO系列的断裂伸长率比CDME系列的断裂伸长率相对更大。 （c）2005年Wiley Periodicals，Inc.

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