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首页> 外文期刊>Journal of Applied Polymer Science >Synthesis and characterization of nonionic 1-vinyl-2-pyrrolidinone/methacryloxy silicone copolymers: Effects of molecular weight of silicone and crosslinking density
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Synthesis and characterization of nonionic 1-vinyl-2-pyrrolidinone/methacryloxy silicone copolymers: Effects of molecular weight of silicone and crosslinking density

机译：非离子型1-乙烯基-2-吡咯烷酮/甲基丙烯酰氧基有机硅共聚物的合成与表征：有机硅分子量和交联密度的影响

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摘要

Nonionic 1-vinyl-2-pyrrolidinone/methacryloxy silicone copolymers (VP/VS copolymers) were prepared and characterized as functions of molecular weight of silicone and crosslinking density. Fourier transform infrared spectroscopy, C-13-NMR, and pyrolysis gas chromatography-mass spectrometry study showed that those copolymers were successfully synthesized. Also, the gel-permeation chromatography spectrum exhibited a fairly narrow distribution of the molecular weight of the polymer. It was found that the turbidity in ethanol (EtOH) and the glass-transition temperature of crosslinked VP/VS copolymers are influenced by the amount of crosslinking agent. However, in the case of branched VP/VS copolymers, a transparent solution was obtained, regardless of the molecular weight of silicone. SEM/EDS study revealed that silicone is more abundant on the coating surface than on the interface of coating/glass. This is probably because Si-containing chains have lower surface energy than that of vinylpyrrolidinone-containing chains. (C) 2002 Wiley Periodicals, Inc. [References: 19]
机译：制备了非离子的1-乙烯基-2-吡咯烷酮/甲基丙烯酰氧基硅氧烷共聚物（VP / VS共聚物），并表征为硅氧烷分子量和交联密度的函数。傅里叶变换红外光谱，C-13-NMR和热解气相色谱-质谱研究表明，这些共聚物已成功合成。同样，凝胶渗透色谱光谱显示出聚合物分子量的相当窄的分布。发现交联剂VP / VS共聚物在乙醇中的浑浊度（EtO​​H）和玻璃化转变温度受交联剂的量影响。但是，在支链VP / VS共聚物的情况下，不管有机硅的分子量如何，都获得了透明溶液。 SEM / EDS研究表明，与涂层/玻璃界面相比，涂层表面的有机硅含量更高。这可能是因为含Si链的表面能比含乙烯基吡咯烷酮的链的表面能低。 （C）2002 Wiley Periodicals，Inc. [参考：19]

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