Polar phase formation in poly(vinylidene fluoride) induced by melt annealing

• Published in: Journal of polymer science. Part B, Polymer physics Vol. 50; no. 20; pp. 1433 - 1437
• Main Authors: Pan, Huayan, Na, Bing, Lv, Ruihua, Li, Chun, Zhu, Jie, Yu, Zhiwei
• Format: Journal Article
• Language: English
• Published: Hoboken Wiley Subscription Services, Inc., A Wiley Company 15.10.2012; Wiley
• Subjects: Annealing; Applied sciences; Coils; Cooling; Crystallization; Exact sciences and technology; Fluorides; infrared spectroscopy; melt annealing; Melting; Melts; Organic polymers; Physicochemistry of polymers; polar phase; poly(vinylidene fluoride); Polymer physics; Properties and characterization; Annealing; poly(vinylidene fluoride); polar phase; Experimental study; Polymorphic transformation; Alpha form; Gamma form; melt annealing; Beta form; Vinylidene fluoride polymer; crystallization; Memory effect; infrared spectroscopy

It is still a challenge to obtain polar phase of poly(vinylidene fluoride) from melt crystallization at normal conditions. This study demonstrates that polar β‐ and γ phases can be produced through melting re‐crystallization of α phase, provided that moderate memory effects in the melt is achieved b...