STUDY ON LIQUID CRYSTALLINITY OF POLY(N-VINYLCARBAZOLE)*

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STUDY ON LIQUID CRYSTALLINITY OF POLY(N-VINYLCARBAZOLE)*

Papers | Updated：2021-06-21

- STUDY ON LIQUID CRYSTALLINITY OF POLY(N-VINYLCARBAZOLE)*
- Vol. 20, Issue 2, Pages: 155-159(2002)
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- Published：20 April 2002
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STUDY ON LIQUID CRYSTALLINITY OF POLY(N-VINYLCARBAZOLE)*[J]. 2002, 20(2): 155-159.
DOI：

STUDY ON LIQUID CRYSTALLINITY OF POLY(N-VINYLCARBAZOLE)*[J]. 2002, 20(2): 155-159. DOI：

摘要

The liquid crystallinity of poly(N-vinylcarbazole) was studied by using powder X-ray diffraction

polarized opticalmicroscopy

and differential scanning calorimetry. The results show that the lower molecular weight fractions of this polymerdo not form a liquid crystalline phase

while the samples of sufficiently high molecular weight do form a mesophase attemperatures above the glass transition. The lowest value of the degree of polymerization for PVK to form a stable liquid crystalline phase was found to be in the range of 150 to 200

significantly higher than the value of 50 for most conventional side chain liquid crystalline polymers.

Abstract

The liquid crystallinity of poly(N-vinylcarbazole) was studied by using powder X-ray diffraction

polarized opticalmicroscopy

and differential scanning calorimetry. The results show that the lower molecular weight fractions of this polymerdo not form a liquid crystalline phase

significantly higher than the value of 50 for most conventional side chain liquid crystalline polymers.

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