Linear and crosslinked silicon based liquid crystalline materials

Tomasz Ganicz

doi:10.1117/12.581208

1 September 2004 Linear and crosslinked silicon based liquid crystalline materials

Tomasz Ganicz

Proceedings Volume 5565, XV Conference on Liquid Crystals; (2004) https://doi.org/10.1117/12.581208
Event: XV Conference on Liquid Crystals, 2003, Zakopane, Poland

Abstract

In this paper the effect of steric hindrance, crosslinking and the use of multipode mesogenic moieties is presented as a part of studies directed on the architectural modification of silicon containing SLCP's. Trist(trimethylsilyl)methyl(trisyl) groups have been attached to liquid crystalline comb-like polysiloxanes by hydrosilylation reaction in order to increase their thermal stability. It was found that attaching trisyl group to 10% of monomeric units led to a decrease in mass loss at 330°C by a factor of 2. The thermo-optical studies of linear and crosslinked LC polycarbosilanes exhibiting SmC* phase proved that crosslinking stabilizes the generated mesophases, especially during isotropisation process. The new synthetic route for polysiloxanes with pendant "triple-fork" mesogenes has been developed. It was found that such the structures are able to generate stable mesophases even if their molecular mass is relatively low.

Citation Download Citation

Tomasz Ganicz "Linear and crosslinked silicon based liquid crystalline materials", Proc. SPIE 5565, XV Conference on Liquid Crystals, (1 September 2004); https://doi.org/10.1117/12.581208

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available