Premium
Preparation and physical properties of polybutadiene grafted onto silica
Author(s) -
Yamashita Shinzo,
Kohjiya Shinzo,
Kita Atsushi,
Shimizu Akihiko
Publication year - 1973
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.1973.070171002
Subject(s) - polybutadiene , ultimate tensile strength , natural rubber , materials science , elongation , composite material , modulus , swelling , young's modulus , tear resistance , polymer chemistry , polymer , copolymer
Abstract Polybutadiene grafted to silica (PG) was prepared by the reaction of living polybutadiene with chlorinated silica. The graft efficiency was below 10%. PG and PG–commercial butadiene rubber blend were cured with sulfur. In either vulcanizate, the following phenomena were found as compared with the controlled samples: tensile modulus increased, degree of swelling and elongation lowered, and tensile strength unchanged. These results showed nearly the same tendency as had been found in the case of the rubber compounded with silica which was treated by coupling agents. In spite of a high tensile modulus of PG vulcanizate, it resulted in a lowering of the dynamic modulus compared with the controlled sample.