Competition of crystal nucleation to fabricate the oriented semi-crystalline polymers
Competition of crystal nucleation to fabricate the oriented semi-crystalline polymers
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晶体成核竞争制备取向半晶聚合物
DOI:
10.1016/j.polymer.2013.04.047
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发表时间:
2013-06
期刊:
影响因子:
4.6
通讯作者:
Hu, Wenbing
中科院分区:
文献类型:
--
作者:
Yu, Muhuo;Hu, Zuming;Reiter, Guenter;Hu, Wenbing
The mechanical performance of many polymeric materials, such as natural rubber tires, plastic bottles and bags, and textile fibers, depends crucially on the stretch-induced alignment of crystalline molecules in the course of processing. However, the underlying molecular mechanism to solidify the alignment is still poorly understood. We employed dynamic Monte Carlo simulations to unveil how at temperatures close to the melting point a homogeneous stretch of bulk polymers can affect crystal nucleation and leads to aligned crystalline molecules. We observed that upon the molecular strain increasing beyond a critical value, the emerging crystallites suddenly decrease their probability of chain-folding, corresponding to a transition from intramolecular chain-folding nuclei to intermolecular fringed-micelle nuclei. On the basis of the classical nucleation theory, the transition can be predicted well by the competition in the free energy barriers for these two coexisting nucleation mechanisms.
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DOI:
10.1098/rspa.1964.0040
发表时间:
1964-02
期刊:
Proceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences
影响因子:
--
作者:
E. H. Andrews
通讯作者:
E. H. Andrews
影响因子:
3.4
作者:
KELLER, A
通讯作者:
KELLER, A
影响因子:
5.5
作者:
Tingzi Yan;Shiwang Cheng;Yuanhua Cong;Zijian Wang;Liangbin Li;Xiuhong Li;Guoqiang Pan;Yuye Fang;Fenggang Bian;Baijin Zhao
通讯作者:
Baijin Zhao
DOI:
10.1002/pol.1978.180160911
发表时间:
1978-09
期刊:
Journal of Polymer Science Part B
影响因子:
--
作者:
W. Wu
通讯作者:
W. Wu
影响因子:
4.6
作者:
Lizhi Liu;B. Hsiao;S. Ran;B. Fu;S. Toki;F. Zuo;A. Tsou;B. Chu
通讯作者:
Lizhi Liu;B. Hsiao;S. Ran;B. Fu;S. Toki;F. Zuo;A. Tsou;B. Chu