原位傅里叶变换红外光谱跟踪等规聚丙烯在升温过程中的构象变化  

In-situ FTIR Spectroscopic Study on the Conformational Change of Isotactic Polypropylene upon Heating

作　　者：朱新远[1] 方亚鹏[1] 李勇进[1] 颜德岳[1] 竺品芳[2] 路庆华[2] 

机构地区：[1]上海交通大学化学化工学院高分子材料研究所 [2]上海交通大学分析测试中心,上海200030

出　　处：《高等学校化学学报》2001年第8期1425-1427,共3页Chemical Journal of Chinese Universities

基　　金：国家重点基础研究专项经费 (批准号 :G19990 6 480 0 )资助 Bruker公司提供了部分资助

摘　　要：The experimental data obtained from fast heating FTIR spectroscopy have confirmed that a conformational change occurs at about 135 ℃ for semicrystalline iPP. Based on the results of density and WAXD measurements, it can be inferred that the conformational change occurring at 135 ℃ comes from the disordering of helical sequences in non crystalline phase, which is further corroborated by the FTIR study on the chloride polypropylene.The experimental data obtained from fast heating FTIR spectroscopy have confirmed that a conformational change occurs at about 135 ℃ for semicrystalline iPP. Based on the results of density and WAXD measurements, it can be inferred that the conformational change occurring at 135 ℃ comes from the disordering of helical sequences in non crystalline phase, which is further corroborated by the FTIR study on the chloride polypropylene.

关 键 词：等规聚丙烯 原位傅里叶变换 红外光谱 构象 升温过程 结构 

分 类 号：O632.12[理学—高分子化学] O631.1[理学—化学]