In-situ FTIR spectroscopic study on the conformational change of isotactic polypropylene upon heating

被引：0
|
作者：
Zhu, XY
Fang, YP
Li, YJ
Yan, DY [1 ]
Zhu, PF
Lu, QH
机构：
[1] Shanghai Jiao Tong Univ, Coll Chem & Chem Technol, Inst Polymer Mat, Shanghai 200240, Peoples R China
[2] Shanghai Jiao Tong Univ, Instrumental Anal Ctr, Shanghai 200030, Peoples R China
来源：
CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE | 2001年 / 22卷 / 08期
关键词：
isotactic polypropylene; FTIR spectroscopy; conformation;
D O I：
暂无
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The experimental data obtained from fast heating FTIR spectroscopy have confirmed that a conformational change occurs at about 135 degreesC for semicrystalline iPP. Based on the results of density and WAXD measurements, it can be inferred that the conformational change occurring at 135 degreesC comes from the disordering of helical sequences in non-crystalline phase, which is further corroborated by the FTIR study on the chloride polypropylene.
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页码：1425 / 1427
页数：3
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