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Thermomechanical study of butyl rubber mastication during compounding
Author(s) -
Jurkowska B.,
Olkhov Y. A.,
Jurkowski B.
Publication year - 1998
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(19980627)68:13<2159::aid-app12>3.0.co;2-v
Subject(s) - compounding , natural rubber , materials science , butyl rubber , dispersity , polymer , composite material , glass transition , mixing (physics) , molar mass distribution , polymer chemistry , thermomechanical analysis , polymer science , thermal expansion , physics , quantum mechanics
A thermomechanical method was used to study the topological and molecular structure of model rubber compounds. This structure changes because of mastication during compounding. It was found that raw butyl rubber has a diblock structure. The molecular weight distribution of the chains between the junctions of the polymer network, the coefficient of polydispersity, a share of low‐temperature and high‐temperature blocks, and changes in their glass transition temperatures as a result of the mixing of butyl rubber depend on both the presence of sulfur and the kind of sulfur (polymeric or mineral). © 1998 John Wiley & Sons, Inc. J Appl Polym Sci 68: 2159–2167, 1998