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端胺基型超支化聚合物对聚碳酸亚丙酯的改性研究 预览 被引量:2

Study on Modification of Poly (propylene carbonate) with Amino-terminated Hyperbranched Polymer
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摘要 以乙二胺和三聚氯氰为原料,通过“一步法”合成了端胺基型超支化乙二胺三嗪聚合物(HBP);采用熔融共混法制备了HBP改性的聚碳酸亚丙酯(PPC)树脂,用差示扫描量热仪、热失重分析仪、微机控制电子万能试验机、组合式数显冲击试验机、旋转流变仪、扫描电子显微镜等对制备的PPC/HBP共混物进行了表征。结果表明,加入1.5%(质量分数,下同)的HBP,PPC/HBP共混物的拉伸强度和断裂伸长率分别提高了50.0%和55.4%;且HBP的加入使PPC的玻璃化转变温度(T_g)和热分解温度均有所提高;HBP是一种有效的PPC改性剂。 Hyperbranched ethylene-diamine triazine polymer (HBP) was jirst prepared through a one-step synthetic method by using ethylenediamine and cyanuric chloride as raw materials, and then poly(propylene carbonate) (PPC) was modified with HBP through a melt blending method. The resulting compounds were characterized by differential scanning calorimetry,thermogravimetric analysis, tensile and impact measurements, rotational rheological test and scanning electronic microscopy. The results indicated that the modified PPC achieved an improvement in tensile strength by 50 % and in elongation at break by 55. 4 % when 1. 5w t % of HBP was incorporated. The glass transition temperature and decomposition temperature of themodified PPC also increased in the precence ofHBP. HBP was considered as an effective modifier for PPC.
作者 司马阳阳 靳玉娟 常西苑 王娥娥 翁云宣 SIMA Yangyang,JIN Yujuan , CHANG Xiyuan , WENG E' e,WENG Yunxuan(Schoolof Material Science and Engineering, Beijing Technology and Business University, Beijing 100048, China)
出处 《中国塑料》 CSCD 北大核心 2017年第12期66-72,共7页 China Plastics
基金 国家自然科学基金青年项目(1503007) 国家自然科学基金面上项目(1473006)
关键词 超支化聚合物 聚碳酸亚丙酯 改性 hyperbranched pol yner poly(propylene carbonate) modification
作者简介 联系人,jinyujuan@th_btbu.edu.cn
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