文献类型：期刊文献

中文题名：端氨基聚氨酯接枝聚丙烯的结晶行为

英文题名：Study on crystallization behavior of PP-g-ATPU

作者：张瑜[1];江先龙[1];管涌[1];胡福增[1];郑安呐[1]

机构：[1]华东理工大学材料科学与工程学院,上海200237

年份：2005

卷号：22

期号：4

起止页码：22

中文期刊名：合成树脂及塑料

外文期刊名：China Synthetic Resin and Plastics

收录：CSTPCD;;EI(收录号：2005329290725);Scopus;北大核心:【北大核心2004】；

基金：上海市科委重大项目(02dz11017);上海市重点学科(华东理工大学材料学)开放基金项目(yd0141009)。

语种：中文

中文关键词：聚丙烯;端氨基聚氨酯;接枝;结晶行为

外文关键词：polypropylene;;amino-terminated polyurethane;;graft;;crystallization behavior

摘要：通过反应挤出法将端氨基聚氨酯(ATPU)接枝到聚丙烯(PP)上,提纯后产物的傅里叶变换红外光谱上出现氨基甲酸酯的C(?)O和N—H的特征吸收峰。使用光学解偏振仪、差示扫描量热法和广角X射线衍射等研究试样中ATPU含量对结晶行为的影响。结果表明,功能化基团的加入起到类似成核剂的作用,能加快PP的结晶速率；随着功能化基团含量的增加,PP结晶度呈现先上升后下降的变化。
Amino-terminated polyurethane (ATPU) was grafted onto polypropylene (PP) via reactive extrusion process. In the infrared (IR) spectrum of the purified resultant PP-g-ATPU, there existed characteristic absorption peak of carbonyl group C=O and inline group N-H of urethane at 1712 cm-1 and 3340 cm-1. The effect of ATPU content on the crystallization behaviour of the grafted copolymer was studied by means of optical depolarizer, differential scanning calorimeter and wide-angle X-ray diffractometer. The results reveal that the functionalized groups so introduced play a role of nucleator-like in the polymerization process and speed up the crystallization rate of PP. With the content of functionalized group increases, the crystallinity of PP varies in a way of initially ascending and then descending.