Lim, Jun Young Kim, Jihun Kim, Sehyun Kwak, Soonjong Lee, Youngchul Seo, Yongsok 2024-01-20T07:04:57Z 2024-01-20T07:04:57Z 2021-09-05 2015-04-07 0032-3861 https://pubs.kist.re.kr/handle/201004/125553 A kinetic equation for the nonisothermal crystallization was employed to analyze the crystallization behaviors of poly(vinylidene fluoride)/multiwalled carbon nanotube (PVDF/MWCNT) composites and its polymorph development. The Avramic exponent, n, could be reasonably well determined from the nonisothermal crystallization exotherm. The polarized optical microscopy showed that both neat PVDF and the nanocomposites had well-developed spherulite morphology. Most crystallization phase of the composite had only cc-phase. Without an external stimulus, development of beta-phase responsible for the piezoelectric properties of PVDF was not observed. Nonisothermal analysis implicitly provides the clue of morphological development history as well as PVDF molecular ordering around the foreign nuclei. (C) 2015 Elsevier Ltd. All rights reserved. English ELSEVIER SCI LTD BETA-PHASE PIEZOELECTRIC PROPERTIES OXIDATION Nonisothermal crystallization behaviors of nanocomposites of poly(vinylidene fluoride) and multiwalled carbon nanotubes Article 10.1016/j.polymer.2015.02.012 1 POLYMER, v.62, pp.11 - 18 POLYMER 62 11 18 scie scopus 000353079800003 2-s2.0-84925004524 Polymer Science Polymer Science Article BETA-PHASE PIEZOELECTRIC PROPERTIES OXIDATION Nonsiothermal crystallization kinetics PVDF/MWCNT nanocomposites Polymorphs development