학술논문
Crystal Structure of Poly(trimethylenecarbonate) by X-ray Diffraction / ポリトリメチレンカーボネートの結晶構造
Document Type
Journal Article
Author
Source
Polymer Preprints, Japan. 2002, :1555
Subject
Language
Japanese
Abstract
Aliphatic polycarbonates are forcussed as the biodegdative polymer. In the present study, X-ray structure analysis was carried out in order to clarify the crystal structure of poly(trimethylene carbonate). Two molecular chains pass through an orthorhombic unit cell with parameters, a=7.02Å, b=5.81Å, c (fiber axis)=12.30Å and the space group, P21cn. The chain conformation of poly(trimethylene carbonate) is nearly T5GT5G. Poly(trimethylene carbonate) crystallizes only under tension in the same manner as natural rubber. Therefore, it can be said that poly(trimethylene carbonate) is a kind of rubber, a synthetic rubber.