Enhancement of electroactive phases in free-standing, flexible thin films of PVDF with addition of p-block chlorides

被引：11
作者：
Thakur, Abhishek [1 ]
Dam, Siddhartha [1 ]
Nath, Deena [1 ]
Shekar, N. V. Chandra [1 ,2 ]
Amarendra, G. [2 ]
Hussain, Shamima [1 ]
机构：
[1] Univ Madras, UGC DAE CSR, Kalpakkam Node, Kokilamedu 603104, Tamil Nadu, India
[2] HBNI, IGCAR, Mat Sci Grp, Kalpakkam 603102, Tamil Nadu, India
来源：
POLYMER | 2020年 / 186卷 / 186期
关键词：
PVDF; Electroactive polymer; Free-standing thin films; BETA-PHASE; POLY(VINYLIDENE FLUORIDE); POLYVINYLIDENE FLUORIDE; NANOCOMPOSITES; ALPHA; TRANSFORMATION;
D O I：
10.1016/j.polymer.2019.122074
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Facile formation and enhancement of electroactive (EA) phases contributing to piezo-properties, using metal salt additives in free-standing flexible thin films of Polyvinylidene fluoride (PVDF) synthesized using sol-gel method with minimum resources has been reported. Enhancement in the EA phases, with the metal salt additives were studied using X-ray diffraction (XRD). Well oriented spherulites were observed in the pristine samples. A drastic change in morphology for samples with salt additives was observed. The presence of salts were confirmed using Energy dispersive X-ray spectroscopy (EDS). Confirmation of phases and their quantification was done using Raman and Infra-red spectroscopy, respectively. Raman and Infra-red spectroscopies, showed increment in the EA phases with the addition of metal halides. Possible rearrangement of polymer chains due to metal salt additives has been discussed.
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页数：6
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