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Rheological Behavior and Morphologies of Reactively Compatibilized PVDF/TPU Blends
Author(s) -
Ma Haiying,
Xiong Zhengrong,
Lv Fengxian,
Li Chan,
Yang Yuming
Publication year - 2011
Publication title -
macromolecular chemistry and physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.57
H-Index - 112
eISSN - 1521-3935
pISSN - 1022-1352
DOI - 10.1002/macp.201000503
Subject(s) - compatibilization , materials science , copolymer , rheology , composite material , polymer blend , morphology (biology) , polymer chemistry , chemical engineering , polymer , engineering , biology , genetics
Using the comb copolymer PVDF ‐g‐ AAc as a compatibilizer, five reactively compatibilized PVDF/TPU blends with different compositions were prepared. During melt blending, the carboxylic acid groups of PVDF ‐g‐ AAc react with the urethane linkages of TPU to generate the graft copolymers PVDF ‐g‐ AAc ‐g‐ TPU, which lead to compatibilization of the PVDF/TPU blends. The rheological behavior of the compatibilized PVDF/TPU blends can be described by a generalized Zener model. PVDF/TPU 50/50 and PVDF/TPU 30/70 blends show a particle network structure, indicating elastic interactions between the grafted shells of compatibilized PVDF domains. SEM shows that almost all compatibilized PVDF/TPU blends exhibit a dispersion‐type morphology.