Influence of orientation of functional bridge on the properties of liquid crystalline polyacetylenes

Fouad Salhi; Jacky W. Y. Lam; John Ada K.; Ben Zhong Tang

Influence of orientation of functional bridge on the properties of liquid crystalline polyacetylenes

Article 2000 en

Abstract

1 min read

Two alkyne monomers were synthesized to study the effects of orientation of ester bridge on the properties of liquid crystalline polyalkynes. Analysis of the polymers by UV, DSC, POM, and XRD showed that with the increase in spacer length, the thermal stability of the polymers increase, their Tg and Ti decrease, and the packing arrangements in the mesophases change from bilayer to monolayer.

Discussion(0)

No comments yet. Be the first to comment.

Related publications

Article2000

Synthesis and Properties of Liquid Crystalline Polyacetylenes with Different Spacer Lengths and Bridge Orientations

Jacky W. Y. Lam, Xiangxing Kong, Yuping Dong, Kevin Ka Leung Cheuk, Kaitian Xu, Ben Zhong Tang

Article2002

Liquid Crystalline and Light Emitting Polyacetylenes: Synthesis and Properties of Biphenyl-Containing Poly(1-alkynes) with Different Functional Bridges and Spacer Lengths

Jacky W. Y. Lam, Yuping Dong, Kevin Ka Leung Cheuk, Jingdong Luo, Zhiliang Xie, Hoi Sing Kwok, Zhishen Mo, Ben Zhong Tang

Article2006

Synthesis, liquid crystallinity, and chiroptical properties of sterol-containing polyacetylenes

Jacky W. Y. Lam, Lo Ming Lai, Ben Zhong Tang

Article2004

Syntheses and Mesomorphic and Luminescent Properties of Disubstituted Polyacetylenes Bearing Biphenyl Pendants

Yuping Dong, Jacky W. Y. Lam, Han Peng, Kevin Ka Leung Cheuk, Hoi Sing Kwok, Ben Zhong Tang

Article1998

Synthesis and Novel Mesomorphic Properties of the Side-Chain Liquid Crystalline Polyacetylenes Containing Phenyl Benzoate Mesogens with Cyano and Methoxy Tails

Xiangxing Kong, Ben Zhong Tang