Chain Trajectory, Chain Packing, and Molecular Dynamics of Semicrystalline Polymers as Studied by Solid-State NMR

Polymers

Takashi Konishi¹  You-Lee Hong²  Shijun Wang²  Wei Chen²  Toshikazu Miyoshi²  Kun Wang²  Wenxuan Zhou²  Shichen Yuan²  Zhen Li²  Xu Min³ 

[1] Shanghai Key Laboratory of Magnetic Resonance, East China Normal University, Shanghai 200062, China;Department of Polymer Science, The University of Akron, Akron, OH 44325-3909, USA;;School of Physics and Materials Science &

关键词: chain trajectory;    chain packing;    molecular dynamics;    semicrystalline polymer;    polymer crystallization;    solid-state NMR;   

DOI  :  10.3390/polym10070775

来源: DOAJ

【 摘 要 】

Chain-level structure of semicrystalline polymers in melt- and solution-grown crystals has been debated over the past half century. Recently, 13C–13C double quantum (DQ) Nuclear Magnetic Resonance (NMR) spectroscopy has been successfully applied to investigate chain-folding (CF) structure and packing structure of 13C enriched polymers after solution and melt crystallization. We review recent NMR studies for (i) packing structure, (ii) chain trajectory, (iii) conformation of the folded chains, (iv) nucleation mechanisms, (v) deformation mechanism, and (vi) molecular dynamics of semicrystalline polymers.

【 授权许可】

Unknown