摘要
用傅里叶变换红外光谱研究了聚己内酯与硝基纤维素、乙基纤维素和纤维素氨基甲酸酯所形成的共混体系中组分间的相互作用。对羟基基团、羰基基团以及聚己内酯结晶相相关的吸收谱带分析表明 :随着纤维素结构单元上羟基被取代程度的增加 ,纤维素衍生物的自身氢键相互作用明显减弱 ,而与聚己内酯之间的相互作用得到加强。这种相互作用的加强 ,显著改变了聚己内酯的结晶行为 ,使其结晶能力减弱。
The interaction in binary blends of poly(ε-caprolactone) with nitrocellulose,ethyl cellulose,and cellulose carbamate was studied by FT-infrared spectroscopic technique.The results indicate that the self-hydrogen-bonding interaction in cellulose derivatives decreases obviously with the decrease of O-H groups in one structure unit,while the interaction between poly(ε-caprolactone) and cellulose derivatives is enhanced.The enhancement of such interaction affects the crystalliztion behavior of PCL evidently,and the crystallization ability of PCL in the blends weakens.
出处
《光谱学与光谱分析》
SCIE
EI
CAS
CSCD
北大核心
2003年第3期515-518,共4页
Spectroscopy and Spectral Analysis
基金
安徽省教委科研重点资助项目 (2 0 0 1kj0 1 9zd)
