A STUDY ON CONFORMATIONAL STRUCTURE OF MODEL COMPOUND OF NOVEL SIDE CHAIN LIQUID CRYSTALLINE POLYMER BY USING HIGH RESOLUTION SOLID STATE 13C-NMR

YANG Xiaozhen; LU Qun; FENG Liwen; ZHU Shannong

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A STUDY ON CONFORMATIONAL STRUCTURE OF MODEL COMPOUND OF NOVEL SIDE CHAIN LIQUID CRYSTALLINE POLYMER BY USING HIGH RESOLUTION SOLID STATE 13C-NMR

Papers | Updated：2021-06-21

- A STUDY ON CONFORMATIONAL STRUCTURE OF MODEL COMPOUND OF NOVEL SIDE CHAIN LIQUID CRYSTALLINE POLYMER BY USING HIGH RESOLUTION SOLID STATE 13C-NMR
- Vol. 11, Issue 2, Pages: 115-120(1993)
- Affiliations：
  
  1. Polymer Physics Laboratory, Institute of Chemistry Academia Sinica,Beijing,100080
  2.   Institute of Chemistry
  3.   Academia Sinica
  4.   Beijing 100080
- Author bio：
- Funds：
- DOI：
  CLC：
- Published：20 June 1993
- Accepted：
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[1]杨小震,陆群,冯立文,朱善农.A STUDY ON CONFORMATIONAL STRUCTURE OF MODEL COMPOUND OF NOVEL SIDE CHAIN LIQUID CRYSTALLINE POLYMER BY USING HIGH RESOLUTION SOLID STATE ~(13)C-NMR[J].Chinese Journal of Polymer Science,1993,{4}(02):115-120.

YANG Xiaozhen, LU Qun, FENG Liwen, et al. A STUDY ON CONFORMATIONAL STRUCTURE OF MODEL COMPOUND OF NOVEL SIDE CHAIN LIQUID CRYSTALLINE POLYMER BY USING HIGH RESOLUTION SOLID STATE 13C-NMR[J]. 1993, 11(2): 115-120.
[1]杨小震,陆群,冯立文,朱善农.A STUDY ON CONFORMATIONAL STRUCTURE OF MODEL COMPOUND OF NOVEL SIDE CHAIN LIQUID CRYSTALLINE POLYMER BY USING HIGH RESOLUTION SOLID STATE ~(13)C-NMR[J].Chinese Journal of Polymer Science,1993,{4}(02):115-120. DOI：

YANG Xiaozhen, LU Qun, FENG Liwen, et al. A STUDY ON CONFORMATIONAL STRUCTURE OF MODEL COMPOUND OF NOVEL SIDE CHAIN LIQUID CRYSTALLINE POLYMER BY USING HIGH RESOLUTION SOLID STATE 13C-NMR[J]. 1993, 11(2): 115-120. DOI：

摘要

正

C-NMR chemical shifts of model compound of a novel side chain liquid crystalline polymer

poly 2.5-his （4-alkoxybenzoyloxy） styrene

have been assigned in this study. Moreover

by using high-resolution solid-state CP/MAS （cross polarization/magic angle spinning） technique

the spectrum shows that in the crystalline state the ester linkage has a conformation nearly perpendicular to the either side of ring planes

and that the alkoxy groups are not fully in zigzag form. The possible conformational changes around the mesogens from the solid state to the mesophase are discussed.

Abstract

C-NMR chemical shifts of model compound of a novel side chain liquid crystalline polymer

poly 2.5-his （4-alkoxybenzoyloxy） styrene

have been assigned in this study. Moreover

by using high-resolution solid-state CP/MAS （cross polarization/magic angle spinning） technique

the spectrum shows that in the crystalline state the ester linkage has a conformation nearly perpendicular to the either side of ring planes

and that the alkoxy groups are not fully in zigzag form. The possible conformational changes around the mesogens from the solid state to the mesophase are discussed.

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