Journal
JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS
Volume 46, Issue 7, Pages 766-769Publisher
JOHN WILEY & SONS INC
DOI: 10.1002/polb.21411
Keywords
brittle-ductile transition of polymers; critical behavior; toughness
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We report that the brittle-ductile transition of polymers induced by temperature exhibits critical behavior. When t close to 0, the critical surface to surface interparticle distance (IDc) follows the scaling law: IDc proportional to t(-v) where t = 1 - T/T-BD(m) (T and T-BD(m) are the test temperature and brittle-ductile transition temperature of matrix polymer, respectively) and v = 2/D. It is clear that the scaling exponent v only depends on dimension (D). For 2, 3, and 4 dimension, v = 1, 2/3, and 1/2 respectively. The result indicates that the ID, follows the same scaling law as that of the correlation length (xi), when t approach to zero.(C) 2008 Wiley Periodicals, Inc.
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