红外光谱法动态跟踪聚羟基脂肪酸酯(PHAs)的热变性过程  

Study on Mechanism of Different PHAs During Heating by FTIR

作　　者：孙素琴[1] 周群[1] 候伟俊 吴琼[2] 陈国强[2] 

机构地区：[1]清华大学化学系,北京100084 [2]清华大学生物系,北京100084

出　　处：《光谱学与光谱分析》2000年第5期677-678,共2页Spectroscopy and Spectral Analysis

摘　　要：本文利用FTIR光谱法研究了常温下和升温、降温过程中PHB ,P(HO co HD)及不同组分的P(HB co HV)和P(HB co HH)共聚物的变化。结果表明 ,PHB、P(HB co HV)和P(HB co HH)在变温过程中红外光谱图发生了明显变化 ,此过程是物理变化 ,且过程可逆。In this paper,PHB,P(HO-co-HD),a various comp os ition of P(HB-co-HV) copolymer and P(HB-co-HH) copolymer were studied both a t normal temperature and in the process of increasing and decreasing temperature using FTIR spectroscopy technology.Results showed that FTIR spectra of PHAs wit h various compositions have distinguishing characteristics.Physical transformati on occurred when PHAs were treated with heat denaturalization,and this physical process was reversible.

关 键 词：FTIR 聚羟基脂肪酸酯 热变性 生物可降解塑料 

分 类 号：O633.14[理学—高分子化学] O631.31[理学—化学]