THERMOMECHANICAL STUDY OF BUTYL RUBBER MASTICATION DURING COMPOUNDING

Citation
B. Jurkowska et al., THERMOMECHANICAL STUDY OF BUTYL RUBBER MASTICATION DURING COMPOUNDING, Journal of applied polymer science, 68(13), 1998, pp. 2159-2167
Citations number
16
Categorie Soggetti
Polymer Sciences
ISSN journal
00218995
Volume
68
Issue
13
Year of publication
1998
Pages
2159 - 2167
Database
ISI
SICI code
0021-8995(1998)68:13<2159:TSOBRM>2.0.ZU;2-9
Abstract
A thermomechanical method was used to study the topological and molecu lar structure of model rubber compounds. This structure changes becaus e of mastication during compounding. It was found that raw butyl rubbe r has a diblock structure. The molecular weight distribution of the ch ains 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 th e mixing of butyl rubber depend on both the presence of sulfur and the kind of sulfur (polymeric or mineral). (C) 1998 John Wiley & Sons, In c.