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Elastic characteristics of branched-network polymers

✍ Scribed by V. I. Dakin

Publisher
John Wiley and Sons
Year
1996
Tongue
English
Weight
360 KB
Volume
60
Category
Article
ISSN
0021-8995

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✦ Synopsis

The computed dependencies of elastic characteristics of branched-network polymers were obtained on the basis of the Takayanagi series model. The moduli ratio ( 7 ) for branchednetwork and branched polymers increases as a result of an increase of the moduli ratio of network and branched phases (E:e,/Ezr) and the network phase fraction ( Vnet). The yincrease as a function of V,,, is larger than in the case of the E;JEEr dependence, On the basis of computed dependencies, the experimental results for the radiation crosslinked SBS block copolymer were considered. The experimental results agree with the computed dependencies for the heterogeneous branched-network polymers with E;et/E:r = 20. The influence of entanglements on the elastic characteristics of branched-network polymers is discussed.

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