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Title: Silylene-diethynyl-arylene polymers having liquid crystalline properties

Abstract

The present invention provides linear organosilicon polymers including diethynyl-(substituted)arylene units, and a process for their preparation. These novel polymers possess useful properties including electrical conductivity, liquid crystallinity, and/or photoluminescence. These polymers possess good solubility in organic solvents. A preferred example is produced according to the following reaction scheme. ##STR1## These polymers can be solvent-cast to yield excellent films and can also be pulled into fibers from concentrated solutions. All possess substantial crystallinity as revealed by DSC analysis and observation through a polarizing microscope, and possess liquid crystalline properties.

Inventors:
 [1];  [1]
  1. Ames, IA
Publication Date:
Research Org.:
Ames Laboratory (AMES), Ames, IA; Iowa State University, Ames, IA (US)
OSTI Identifier:
868915
Patent Number(s):
US 5243060
Application Number:
07/866,564
Assignee:
Iowa State University Research Foundation, Inc. (Ames, IA)
DOE Contract Number:  
W-7405-ENG-82
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
silylene-diethynyl-arylene; polymers; liquid; crystalline; properties; provides; linear; organosilicon; including; diethynyl-; substituted; arylene; units; process; preparation; novel; possess; useful; electrical; conductivity; crystallinity; photoluminescence; solubility; organic; solvents; preferred; example; produced; according; following; reaction; scheme; str1; solvent-cast; yield; excellent; films; pulled; fibers; concentrated; solutions; substantial; revealed; dsc; analysis; observation; polarizing; microscope; concentrated solution; concentrated solutions; produced according; provides linear; liquid crystalline; organic solvents; organic solvent; electrical conductivity; liquid crystal; polymers including; properties including; useful properties; reaction scheme; organosilicon polymers; linear organosilicon; organosilicon polymer; /999/528/

Citation Formats

Barton, Thomas J, and Ding, Yiwei. Silylene-diethynyl-arylene polymers having liquid crystalline properties. United States: N. p., 1993. Web.
Barton, Thomas J, & Ding, Yiwei. Silylene-diethynyl-arylene polymers having liquid crystalline properties. United States.
Barton, Thomas J, and Ding, Yiwei. Tue . "Silylene-diethynyl-arylene polymers having liquid crystalline properties". United States. https://www.osti.gov/servlets/purl/868915.
@article{osti_868915,
title = {Silylene-diethynyl-arylene polymers having liquid crystalline properties},
author = {Barton, Thomas J and Ding, Yiwei},
abstractNote = {The present invention provides linear organosilicon polymers including diethynyl-(substituted)arylene units, and a process for their preparation. These novel polymers possess useful properties including electrical conductivity, liquid crystallinity, and/or photoluminescence. These polymers possess good solubility in organic solvents. A preferred example is produced according to the following reaction scheme. ##STR1## These polymers can be solvent-cast to yield excellent films and can also be pulled into fibers from concentrated solutions. All possess substantial crystallinity as revealed by DSC analysis and observation through a polarizing microscope, and possess liquid crystalline properties.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1993},
month = {9}
}

Patent:

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