Miscibility and free volume in liquid crystalline polymer blends

G. P. Simon; T. T. Hsieh; C. Tiu

Miscibility and free volume in liquid crystalline polymer blends

G. P. Simon
, T. T. Hsieh
, C. Tiu

Research output: Chapter in Book/Report/Conference proceeding › Conference Paper › Other

Abstract

Thermotropic main-chain liquid crystalline polymers have in themselves advantageous properties of low viscosity, die swell and thermal expansion and high modulus. Due to their expense and useful properties, they have mainly been blended with random coil thermoplastics. Blends of two liquid crystalline polymers have been much less studied, despite often showing synergistic properties of low viscosity and high modulus, even greater than either component. This poster will look at blends of LCPs with different copolymer constituents and copolymer ratios to determine which seem to result in miscibility in rigid rod mixtures. This will be done using relaxational techniques such as dielectric relaxation, dynamic mechanical analysis and the free volume technique, positron annihilation spectroscopy, which will be compared to density measurements.

Original language	English
Title of host publication	Proceedings of the 1997 Spring ACS Meeting
Publisher	American Chemical Society
Number of pages	1
Volume	76
Publication status	Published - 1 Jan 1997
Event	ACS National Meeting Spring 1997 - San Francisco, CA, USA Duration: 13 Apr 1997 → 17 Apr 1997 https://www.acs.org/events/acs-meetings/past-meetings.html (Website)

Publication series

Name	Polymeric Materials Science and Engineering
Publisher	American Chemical Society
ISSN (Print)	0743-0515

Conference

Conference	ACS National Meeting Spring 1997
City	San Francisco, CA, USA
Period	13/04/97 → 17/04/97
Internet address	https://www.acs.org/events/acs-meetings/past-meetings.html (Website)

Cite this

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title = "Miscibility and free volume in liquid crystalline polymer blends",

abstract = "Thermotropic main-chain liquid crystalline polymers have in themselves advantageous properties of low viscosity, die swell and thermal expansion and high modulus. Due to their expense and useful properties, they have mainly been blended with random coil thermoplastics. Blends of two liquid crystalline polymers have been much less studied, despite often showing synergistic properties of low viscosity and high modulus, even greater than either component. This poster will look at blends of LCPs with different copolymer constituents and copolymer ratios to determine which seem to result in miscibility in rigid rod mixtures. This will be done using relaxational techniques such as dielectric relaxation, dynamic mechanical analysis and the free volume technique, positron annihilation spectroscopy, which will be compared to density measurements.",

author = "Simon, \{G. P.\} and Hsieh, \{T. T.\} and C. Tiu",

year = "1997",

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language = "English",

volume = "76",

series = "Polymeric Materials Science and Engineering",

publisher = "American Chemical Society",

booktitle = "Proceedings of the 1997 Spring ACS Meeting",

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TY - GEN

T1 - Miscibility and free volume in liquid crystalline polymer blends

AU - Simon, G. P.

AU - Hsieh, T. T.

AU - Tiu, C.

PY - 1997/1/1

Y1 - 1997/1/1

N2 - Thermotropic main-chain liquid crystalline polymers have in themselves advantageous properties of low viscosity, die swell and thermal expansion and high modulus. Due to their expense and useful properties, they have mainly been blended with random coil thermoplastics. Blends of two liquid crystalline polymers have been much less studied, despite often showing synergistic properties of low viscosity and high modulus, even greater than either component. This poster will look at blends of LCPs with different copolymer constituents and copolymer ratios to determine which seem to result in miscibility in rigid rod mixtures. This will be done using relaxational techniques such as dielectric relaxation, dynamic mechanical analysis and the free volume technique, positron annihilation spectroscopy, which will be compared to density measurements.

AB - Thermotropic main-chain liquid crystalline polymers have in themselves advantageous properties of low viscosity, die swell and thermal expansion and high modulus. Due to their expense and useful properties, they have mainly been blended with random coil thermoplastics. Blends of two liquid crystalline polymers have been much less studied, despite often showing synergistic properties of low viscosity and high modulus, even greater than either component. This poster will look at blends of LCPs with different copolymer constituents and copolymer ratios to determine which seem to result in miscibility in rigid rod mixtures. This will be done using relaxational techniques such as dielectric relaxation, dynamic mechanical analysis and the free volume technique, positron annihilation spectroscopy, which will be compared to density measurements.

UR - https://www.scopus.com/pages/publications/0030643045

M3 - Conference Paper

AN - SCOPUS:0030643045

VL - 76

T3 - Polymeric Materials Science and Engineering

BT - Proceedings of the 1997 Spring ACS Meeting

PB - American Chemical Society

T2 - ACS National Meeting Spring 1997

Y2 - 13 April 1997 through 17 April 1997

ER -

Miscibility and free volume in liquid crystalline polymer blends

Abstract

Publication series

Conference

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Cite this