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Spherulitic formation and characterization of partially fluorinated copolymers and their nanohybrids with functional fillers
Author(s) -
Mamun Muhammad Abdullah Al,
Kasahara Yusuke,
Tasaki Taira,
Fujimori Atsuhiro
Publication year - 2017
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.24397
Subject(s) - materials science , etfe , tetrafluoroethylene , crystallization , spherulite (polymer physics) , copolymer , nanodiamond , lamellar structure , chemical engineering , texture (cosmology) , crystallinity , composite material , polymer chemistry , morphology (biology) , polymer , image (mathematics) , layer (electronics) , artificial intelligence , biology , diamond , computer science , engineering , genetics
Poly[vinylidenefluoride‐ co ‐(tetrafluoroethylene)] (P(VDF‐TeFE)) exhibited clear spherulitic texture with negative birefringence. The number and growth rates of the spherulites decreased at high crystallization temperature than at low crystallization temperature. Nonetheless, overall larger spherulites were found at high crystallization temperature and the brightness of the spherulites increased very fast at low crystallization temperature, thereafter it seemed as diminution of birefringence. AFM was used to investigate the impact of organo modified nanodiamond(ND) on spherulitic textures, lamellar thickness, and thickness distribution of P(VDF‐TeFE) copolymer. Poly[ethylene‐ co ‐(tetrafluoroethylene)] (ETFE) also confirmed spherulites structure and the boundaries could be clearly observed. By incorporation of the organo modified nanodiamond (ND) and organo‐modified montmorillonite (MMT) in fluropolymer matrix, it was found that spherulitic texture was seriously disordered and their nanohybrids was found only to have poorly developed spherulite structure. Both of the nanohybrids samples show better crystallization temperature as compared to their neat copolymer samples. Furthermore, the incorporation of nanoparticles decreased the size of the spherulites. POLYM. ENG. SCI., 57:161–171, 2017. © 2016 Society of Plastics Engineers