Premium
Crosslinking and mechanical property of liquid rubber. II. Curative effect of aromatic diols
Author(s) -
Minoura Yuji,
Yamashita Shinzo,
Okamoto Hiroshi,
Matsuo Tadao,
Izawa Michiaki,
Kohmoto Shunichi
Publication year - 1978
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1978.070221106
Subject(s) - polybutadiene , crystallinity , diol , elastomer , ultimate tensile strength , steric effects , materials science , polyurethane , natural rubber , polymer chemistry , organic chemistry , composite material , chemistry , polymer , copolymer
Abstract The relationships between the properties and structure of polyurethane elastomers derived from hydroxyl‐terminated liquid polybutadiene (HT‐BD), several low molecular weight aromatic diols, and diisocyanates were studied. The curative effects of the diols were examined by such means as tensile properties, dynamic viscoelasticity, x‐ray diffraction, and others. It was found that the properties of the elastomers derived from HT‐BD were greatly affected by the structure of low molecular weight chain extender diol. These results were interpreted by the steric effect, crystallinity, and the concentration of polar groups.