Crystallization behavior of poly(lactic acid) with a self-assembly aryl amide nucleating agent probed by real-time infrared spectroscopy and X-ray diffraction
作者： Huanhuan Zhang , Songjie Wang , Shaoyuan Zhang , Ruixue Ma , Yaming Wang
DOI: 10.1016/J.POLYMERTESTING.2017.09.034
关键词:
摘要: Abstract The effect of a self-assembly nucleating agent, N , ′, ″-tricyclohexyl-1,3,5-benzenetricarboxylamide (BTCA), on the crystallization behavior poly(lactic acid) (PLA) was probed by time-resolved Fourier transform infrared spectroscopy (FTIR) and wide angle X-ray diffraction (WAXD). vibrational changes associated with inter- intra-chain interactions during were monitored. In initial period crystallization, order intensity is as follows: 1458 cm −1 > 1210 cm » 921 cm ∼ for neat PLA, PLAs containing 0.1 wt% 0.3 wt% BTCA, respectively. This indicates that BTCA can accelerate both formation skeletal conformational-ordered structure and, especially, 10 3 helix one. incorporation mechanism but has no impact crystal form PLA.
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