范文编号:HG183 范文字数:15278,页数:34 摘要:本范文主要研究了聚长链α-烯烃的合成,长链α-烯烃共聚物溶液接枝马来酸酐,并探讨了聚合物合成规律以及用途。 研究了使用球形Ziegler-Natta负载型催化剂,三异丁基铝(TIBA)为助催化剂,二苯基二甲氧基硅烷(DDS)为外给电子体,通过本体聚合的方法,在60℃温度及磁力搅拌下共聚得到长链α-烯烃聚合物。考察了不同的聚合条件如聚合时间、催化剂类型及其用量、Zn/Ti摩尔比、聚合温度等对制备1-辛烯、1-十四烯共聚物的特性粘度、分子量的影响,用GPC和粘度的测定来表征共聚物结构和分子量, 酸碱滴定来表征接枝后聚合物的MAN含量,用水接触角实验表征防雾膜表面的亲水性及防雾的效果。 关键字:长链α-烯烃;马来酸酐;共聚;接枝 Abstract: In this research work, synthesis of the poly (long chain α-olefin), and the grafting copolymerization of homopoly(long chain α-olefin) and maleic anhydride by solution polymerization were studied. Study the use of spherical Ziegler-Natta-supported catalyst chemistry, triisobutylaluminum(TIBA) as catalyst, Dimethoxydiphenylsilane (DDS) as electron donors outside, by bulk polymerization method, in temperature of 60 and magnetic stirring coplymerisation long chain α-olefin polymer. See about the effects of the polymerization conditions, such as reaction time, the type and amount of catalyst, Zn / Ti mole ratio, polymerization temperature on the Preparation of 1-octene, 1-tetradecene copolymer of intrinsic viscosity and molecular weight. GPC and viscosity measured to characterize the structure and molecular weight of copolymer. Acid-base titration to characterize the grafted polymer MAN content, water contact angle to characterize the film surface hydrophilicity and antifogging effect. Keywords: Long chain α-olefin; Maleic anhydride; Copolymerization; Grafting copolymerization 目 录 长效防雾滴农膜的研制相关范文 |
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