Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/91808
Title: Estimation of surface tensions of thermotropic liquid crystalline polymers (Vectra A950, B950 & Xydar)
Authors: Ma, Kui Xiang
Chung, Tai-Shung 
Issue Date: 1998
Source: Ma, Kui Xiang,Chung, Tai-Shung (1998). Estimation of surface tensions of thermotropic liquid crystalline polymers (Vectra A950, B950 & Xydar). Annual Technical Conference - ANTEC, Conference Proceedings 2 : 1583-1585. ScholarBank@NUS Repository.
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.
Source Title: Annual Technical Conference - ANTEC, Conference Proceedings
URI: http://scholarbank.nus.edu.sg/handle/10635/91808
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.

Page view(s)

32
checked on Feb 17, 2018

Google ScholarTM

Check


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.