详细信息
用固体^(13)C-NMR表征丙烯酸酯类抗冲型改性剂的核壳结构
Characterization of core-shell structure of acrylic resin impact modifier by ^(13)C-NMR
文献类型:期刊文献
中文题名:用固体^(13)C-NMR表征丙烯酸酯类抗冲型改性剂的核壳结构
英文题名:Characterization of core-shell structure of acrylic resin impact modifier by ^(13)C-NMR
作者:沈国栋[1];唐颂超[1];李远[2];张德震[1];罗会俊[3];潘铁英[3];史新梅[3]
机构:[1]华东理工大学材料科学与工程学院,上海200237;[2]华东理工大学石油化工学院,上海201512;[3]华东理工大学分析测试中心,上海200237
年份:2003
卷号:26
期号:2
起止页码:91
中文期刊名:合成橡胶工业
外文期刊名:China Synthetic Rubber Industry
收录:CSTPCD;;Scopus;北大核心:【北大核心2000】;CSCD:【CSCD_E2011_2012】;
语种:中文
中文关键词:固体^13C-NMR;表征;丙烯酸酯类树脂;抗冲型改性剂;核壳结构;核磁共振
外文关键词:acrylic resin;impact modifier;core-shell structure;nuclear magnetic resonance;characterization
摘要:采用固体13C-NMR对具有核壳结构的丙烯酸酯类抗冲型改性剂(ACR)中的聚甲基丙烯酸甲酯(PMMA)进行了测试。结果表明,ACR中聚丙烯酸丁酯(PBA)核与PMMA壳具有良好的相容性并形成了中间相,由PMMA旋转坐标系中自旋晶格弛豫时间得出PMMA中间相占总PMMA的摩尔分数为23%,由自旋-自旋作用时间得出PMMA中间相与非中间相摩尔比为3/7。
13C-NMR analysis of poly(methyl methacrylate)(PMMA) in acrylic imp ac t modifier indicated that core of poly(butyl acrylate) and shell of PMMA showed good compatibility and a sort of interphase was developed.The result inferred by spin-lattic relaxation in the rotating frame suggested that the total mass fra ction of PMMA in the interphase was about 23%,and the ratio of PMMA in interpha se and non-interphase was 3/7 according to spin-spin interaction.
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