环氧丙烷的脉冲等离子体聚合及其聚合物的稳定性
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摘要
以环氧丙烷为单体进行了脉冲等离子体聚合,研究了脉冲占空比,聚合时间对聚合动力学的影响,并以红外(FT-IR)、扫描电镜(SEM)和接触角等方法研究了等离子体聚合物的结构与性能。结果表明:高占空比和长的聚合时间有利于聚合量的增加,环氧丙烷的等离子体聚合物中含有酯,羧基,直链醚,环醚,羟基等官能团并存在支化,交联的结构,聚合物中保留的环氧基团可以与乙二胺反应,并能进一步提高表面的稳定性。
Plasma polymerization of propylene oxide was carried out via a pulsed plasma method. Effects of pulsed duties cycle and polymerization time on polymerization kinetics were investigated in detail,after which the chemical composition,surface morphology and property of the polymers were evaluated based on analyses of FT-IR,SEM and the contact angle. The polymer amount was found to enhance significantly with increases of the duty cycle and polymerization time. Some polar groups,including ester,carboxyl,ether,cyclic ether and hydroxyl were detected in the formed polymers,and the polymers were proved to preserve the branching or cross-linked structure. The surface durability of the polymer could be improved by a subsequent reaction for its epoxy groups with ethylenediamine.
Plasma polymerization of propylene oxide was carried out via a pulsed plasma method. Effects of pulsed duties cycle and polymerization time on polymerization kinetics were investigated in detail,after which the chemical composition,surface morphology and property of the polymers were evaluated based on analyses of FT-IR,SEM and the contact angle. The polymer amount was found to enhance significantly with increases of the duty cycle and polymerization time. Some polar groups,including ester,carboxyl,ether,cyclic ether and hydroxyl were detected in the formed polymers,and the polymers were proved to preserve the branching or cross-linked structure. The surface durability of the polymer could be improved by a subsequent reaction for its epoxy groups with ethylenediamine.
引文
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[2]陈杰瑢.低温等离子体化学及其应用[M].北京:科学出版社,2001:71-75.
[3]CARLA D,LOUISE E S,JASON D W,et al.Plasma parameter aspects in the fabrication of stable amine functionalized plasma polymer films[J].Plasma Processes and Polymers,2015,doi:10.1002/ppap.201400215.
[4]INAGAKI N,SUZUKI K.Highly wettable films plasma-polymerized from ethylene oxide[J].Journal of Polymer Science:Part A.Polymer Chemistry,1987,25:1633-1639.
[5]WU Y J,ANDREW J G,JAMES S J,et al.Pulsed plasma polymerization of cyclic ethers:production of biologically nonfouling surfaces[J].Plasma and Polymer,2001,6(3):123-143.
[6]EMILIO J G,ROBERT W K.Electron impact spectroscopy of ethylene oxide and propylene oxide[J].Journal of the American Chemical Society,1961,83(4):773-777.
[7]FAROOP A A,ALIYU A W,MARY R E.FTIR spectroscopic analysis and fuel properties of wild castor(Ricinus communis L)seed oil[J].Open Science Journal of Analytical Chemistry,2014,1(1):6-9.
[8]张昌辉,胡孟秋.溶液和熔融相结合法合成端羟基聚乳酸[J].塑料,2014,43(2):96-99.
[9]谢晶曦,常俊标,王绪明.红外光谱在有机化学和药物化学中的应用[M].北京:科学出版社,2001:53-95.
[10]CLAUS-PETER K,KATRIN H,NIKLAS K,et al.Surface functionalization at atmospheric pressure by DBD-based pulsed plasma polymerization[J].Plasma and Polymers,2000,5(2):79-87.
[11]黄健,王晓琳.低温等离子体对聚合物多孔膜的亲水化改性[J].高分子通报,2005(6):16-21.
[12]段晓博,杨彪.聚合物表面超亲水性改进进展[J].塑料,2014,43(3):114-117.
[13]WU Y J,TIMMONS R B,JEN J S.Non-fouling surfaces produced by gas phase pulsed plasma polymerization of an ultra low molecular weight ethylene oxide containing monmer[J].Colloids and Surfaces B:Biointerfaces,2000,18:235-248.
[14]王国建,郭建龙,屈泽华.乙二胺修饰的碳纳米管对环氧树脂力学性能的影响[J].玻璃钢/复合材料,2006(6):16-19.