Real-time investigation of crystallization in nylon 6-clay nano-composite probed by infrared spectroscopy

Via time-resolved FTIR, we examined the real-time investigation of the structural change in molecular chain of nylon 6 during crystallization of neat nylon 6 and the corresponding nano-composite (N6C3.7) having fully exfoliated structure. The neat nylon 6 predominantly formed α-phase in the crystall...

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Published in:Polymer (Guilford) 2010-10, Vol.51 (23), p.5585-5591
Main Authors: Ishisue, Takaya, Okamoto, Masami, Tashiro, Kohji
Format: Article
Language:English
Subjects:
Applied sciences
Composites
Crystallization
Exact sciences and technology
Forms of application and semi-finished materials
Infrared spectroscopy
Molecular structure
Nano-composites
Nanocomposites
Nanomaterials
Nanostructure
Nylon 6
Polymer industry, paints, wood
Polymorph
Real time
Technology of polymers
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cited_by cdi_FETCH-LOGICAL-c437t-cb78e90cf470f0d59ca434f0161011d94080eb933f11c797baf83a6b831c6f953
cites cdi_FETCH-LOGICAL-c437t-cb78e90cf470f0d59ca434f0161011d94080eb933f11c797baf83a6b831c6f953
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creator Ishisue, Takaya
Okamoto, Masami
Tashiro, Kohji
description Via time-resolved FTIR, we examined the real-time investigation of the structural change in molecular chain of nylon 6 during crystallization of neat nylon 6 and the corresponding nano-composite (N6C3.7) having fully exfoliated structure. The neat nylon 6 predominantly formed α-phase in the crystallization temperature (Tc) range of 155–195 °C. For N6C3.7 crystallization at low Tc range of 150–168 °C, where the network structure formed by the dispersed clay particles still affected chain folding of nylon 6, the formation of the γ-phase was dominant. The crystallization took place so rapidly (less than 1 s) without induction time of crystallization. At high Tc range (=177–191 °C), the stable growth of the α-phase crystal coexisting with γ-phase occurred in N6C3.7 crystallization. The growth mechanism in the subsequent crystallization processes (amides IIIα and IIIγ) was virtually the same in both N6C3.7 and neat nylon 6. [Display omitted]
doi_str_mv 10.1016/j.polymer.2010.09.033
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source ScienceDirect Freedom Collection 2022-2024
subjects Applied sciences
Composites
Crystallization
Exact sciences and technology
Forms of application and semi-finished materials
Infrared spectroscopy
Molecular structure
Nano-composites
Nanocomposites
Nanomaterials
Nanostructure
Nylon 6
Polymer industry, paints, wood
Polymorph
Real time
Technology of polymers
title Real-time investigation of crystallization in nylon 6-clay nano-composite probed by infrared spectroscopy
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