Premium
Application of thermomechanical mass spectroscopy for analysis of molecular and topological structure of rubber
Author(s) -
Jurkowska B.,
Olkhov Y. A.,
Jurkowski B.
Publication year - 1999
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/(sici)1097-4628(19991017)74:3<490::aid-app3>3.0.co;2-7
Subject(s) - natural rubber , dispersity , glass transition , polymer , materials science , amorphous solid , molar mass distribution , topology (electrical circuits) , polymer chemistry , thermomechanical analysis , dynamic mechanical analysis , polymer science , composite material , chemistry , thermal expansion , crystallography , mathematics , combinatorics
A novel method was applied to study the topological and molecular structures of multicomponent rubber. This method is based on the thermomechanical analysis of a solid polymer. A diblock amorphous structure was found for the studied rubber network. These blocks differ a great deal in their glass transition temperature. The methodology of how to calculate the crosslink density in each block, the molecular weight distribution of the chains between the junctions of the network, and the shares of low‐temperature (soft) and high‐temperature (hard) blocks in a structure of the rubber network were also shown. Based on these data it is possible to calculate the number‐average and weight‐average molecular weight and the polydispersity coefficients of the chains between the junctions of the network. © 1999 John Wiley & Sons, Inc. J Appl Polym Sci 74: 490–501, 1999