SMALL ANGLE LIGHT SCATTERING MEASUREMENT OF THE ISOTROPIC TO NEMATIC TRANSITION OF A SIDE CHAIN NEMATIC POLYMETHACRYLATE*

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SMALL ANGLE LIGHT SCATTERING MEASUREMENT OF THE ISOTROPIC TO NEMATIC TRANSITION OF A SIDE CHAIN NEMATIC POLYMETHACRYLATE*

Papers | Updated：2021-06-21

- SMALL ANGLE LIGHT SCATTERING MEASUREMENT OF THE ISOTROPIC TO NEMATIC TRANSITION OF A SIDE CHAIN NEMATIC POLYMETHACRYLATE*
- SMALL ANGLE LIGHT SCATTERING MEASUREMENT OF THE ISOTROPIC TO NEMATIC TRANSITION OF A SIDE CHAIN NEMATIC POLYMETHACRYLATE*
- 高分子科学（英文版） 2002年20卷第5期页码：431-437
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- 纸质出版：2002-10-20
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SMALL ANGLE LIGHT SCATTERING MEASUREMENT OF THE ISOTROPIC TO NEMATIC TRANSITION OF A SIDE CHAIN NEMATIC POLYMETHACRYLATE*[J]. 高分子科学（英文版）, 2002,20(5):431-437.

SMALL ANGLE LIGHT SCATTERING MEASUREMENT OF THE ISOTROPIC TO NEMATIC TRANSITION OF A SIDE CHAIN NEMATIC POLYMETHACRYLATE*[J]. 2002, 20(5): 431-437.
SMALL ANGLE LIGHT SCATTERING MEASUREMENT OF THE ISOTROPIC TO NEMATIC TRANSITION OF A SIDE CHAIN NEMATIC POLYMETHACRYLATE*[J]. 高分子科学（英文版）, 2002,20(5):431-437. DOI：

SMALL ANGLE LIGHT SCATTERING MEASUREMENT OF THE ISOTROPIC TO NEMATIC TRANSITION OF A SIDE CHAIN NEMATIC POLYMETHACRYLATE*[J]. 2002, 20(5): 431-437. DOI：

摘要

The kinetics of I→N transition of a side chain nematic polymethacrylate has been studied by small angledepolarized light scattering intensity measurements using a charge coupled device linear image sensor. The polymer showsthe transition temperatures K52N79I in ℃. The Hv scattering intensity J(q

t) during the transition I (at 80.2℃)→N (at75.8℃) shows that J(q) is independent of q for all t

and during the initial stage (in 6 s) J(t) increases exponentially with t.In the later stage of the transition (t) approaches a saturation value in 2 min.This experimental result indicates that the I→N transition of a liquid crystalline polymer is a spinodal type of phase transition mediated by orientation fluctuation.

Abstract

t) during the transition I (at 80.2℃)→N (at75.8℃) shows that J(q) is independent of q for all t

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