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Non‐isothermal crystallization of poly(ethylene oxide)/silver nanoplate composites
Author(s) -
Rahmansyah Nandho,
Lo ChiehTsung,
Syu CiouMei,
Lee ChienLiang
Publication year - 2011
Publication title -
polymer international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.592
H-Index - 105
eISSN - 1097-0126
pISSN - 0959-8103
DOI - 10.1002/pi.3091
Subject(s) - nucleation , materials science , crystallization , differential scanning calorimetry , composite material , isothermal process , avrami equation , oxide , ethylene oxide , diffusion , chemical engineering , polymer , crystallization of polymers , thermodynamics , copolymer , chemistry , organic chemistry , physics , engineering , metallurgy
The non‐isothermal crystallization of poly(ethylene oxide) (PEO)/silver nanoplate composites was studied using differential scanning calorimetry. The non‐isothermal crystallization was analyzed by combining the Avrami and Ozawa equations. It was found that the Avrami exponent for neat PEO ranges from 2.51 to 2.53, whereas it ranges from 2.54 to 3.16 for its composites, indicating that the spherical crystal morphology does not change with the addition of nanoplates. However, the rate determination of crystal growth transfers from diffusion to nucleation. The crystallization half‐time showed an increase with the addition of silver nanoplates in PEO, indicating that the overall crystallization rate of PEO decreases with the addition of nanoplates. However, the nucleation activity is larger than unity in the composites and the value increases with an increase in the nanoplate content. This behavior implies that the nanoplates act as anti‐nucleating agents to hinder nucleation. Copyright © 2011 Society of Chemical Industry