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Issue 2, 2014
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Thermodynamics of strain-induced crystallization of random copolymers

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Abstract

Industrial semi-crystalline polymers contain various kinds of sequence defects, which behave like non-crystallizable comonomer units on random copolymers. We performed dynamic Monte Carlo simulations of strain-induced crystallization of random copolymers with various contents of comonomers at high temperatures. We observed that the onset strains of crystallization shift up with the increase of comonomer contents and temperatures. The behaviors can be predicted well by a combination of Flory's theories on the melting-point shifting-down of random copolymers and on the melting-point shifting-up of strain-induced crystallization. Our thermodynamic results are fundamentally important for us to understand the rubber strain-hardening, the plastic molding, the film stretching as well as the fiber spinning.

Graphical abstract: Thermodynamics of strain-induced crystallization of random copolymers

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Article information


Submitted
19 Sep 2013
Accepted
30 Oct 2013
First published
31 Oct 2013

Soft Matter, 2014,10, 343-347
Article type
Paper

Thermodynamics of strain-induced crystallization of random copolymers

Y. Nie, H. Gao, Y. Wu and W. Hu, Soft Matter, 2014, 10, 343
DOI: 10.1039/C3SM52465E

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