Estimation of surface tensions of thermotropic liquid crystalline polymers (Vectra A950, B950 & Xydar)

Kui Xiang Ma*, Tai Shung Chung

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

We have determined the surface tensions (γs) two liquid crystalline polyesters (VectraTM A-950 and XydarTM) and one polyesteramide (VectraTM B-950) using contact angle techniques at room temperature. These LCPs were dissolved in mixtures of 3,5-bis-trifluoromethyl phenol and spin-coated upon glass slides to form thin films. The contact angle measurements were carried out employing a Rame-Hart contact angle goniometer. The average surface tensions of VectraTM A-950, VectraTM B-950 and XydarTM are 41.04, 41.94 and 42.27 mJ/cm2, respectively. In addition, all these three LCPs should be classed as monopolar Lewis bases because their Lewis acid components, γ+, are neglectable. The intensity of Lewis base for these LCPs are as follows: XydarTM>VectraTM B-950>VectraTM A-950.

Original languageEnglish (US)
Title of host publicationAnnual Technical Conference - ANTEC, Conference Proceedings
Editors Anon
PublisherSoc Plast Eng
Pages1583-1585
Number of pages3
Volume2
StatePublished - 1998
Externally publishedYes
EventProceedings of the 1998 56th Annual Technical Conference, ANTEC. Part 1 (of 3) - Atlanta, GA, USA
Duration: Apr 26 1998Apr 30 1998

Other

OtherProceedings of the 1998 56th Annual Technical Conference, ANTEC. Part 1 (of 3)
CityAtlanta, GA, USA
Period04/26/9804/30/98

ASJC Scopus subject areas

  • Engineering(all)

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