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Dielectric relaxation studies of heterogeneously substituted cellulose acetate and its plasticization by dibutyl phthalate
Author(s) -
Doyle Stephen J.,
Pethrick Richard A.
Publication year - 1992
Publication title -
polymer international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.592
H-Index - 105
eISSN - 1097-0126
pISSN - 0959-8103
DOI - 10.1002/pi.4990270407
Subject(s) - dibutyl phthalate , crystallinity , dielectric , plasticizer , relaxation (psychology) , cellulose acetate , materials science , cellulose , chemical engineering , polymer chemistry , composite material , organic chemistry , chemistry , psychology , social psychology , optoelectronics , engineering
Dielectric relaxation measurements are reported on plasticized commercial and heterogeneously substituted cellulose acetate. Differences in the observed behaviour are attributed to the retention of a degree of crystallinity and microscopic structure in the original substituted cellulose samples. A comparison of dynamic mechanical and dielectric relaxation data further emphasizes the influence of the nature of the original morphology on the micro dynamics.