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:
- Issue Date:
- OSTI Identifier:
- 5302643
- Patent Number(s):
- 5243060
- Application Number:
- PPN: US 7-866564
- Assignee:
- Iowa State Univ. Research Foundation, Inc., Ames, IA (United States)
- DOE Contract Number:
- W-7405-ENG-82
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 10 Apr 1992
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; 36 MATERIALS SCIENCE; ORGANIC POLYMERS; CRYSTAL STRUCTURE; ELECTRIC CONDUCTIVITY; SYNTHESIS; DISSOLUTION; FLOWSHEETS; LIQUID CRYSTALS; CRYSTALS; DIAGRAMS; ELECTRICAL PROPERTIES; FLUIDS; LIQUIDS; ORGANIC COMPOUNDS; PHYSICAL PROPERTIES; POLYMERS; 400201* - Chemical & Physicochemical Properties; 360606 - Other Materials- Physical Properties- (1992-); 360602 - Other Materials- Structure & Phase Studies
Citation Formats
Barton, T J, and Yiwei, Ding. Silylene-diethynyl-arylene polymers having liquid crystalline properties. United States: N. p., 1993.
Web.
Barton, T J, & Yiwei, Ding. Silylene-diethynyl-arylene polymers having liquid crystalline properties. United States.
Barton, T J, and Yiwei, Ding. Tue .
"Silylene-diethynyl-arylene polymers having liquid crystalline properties". United States.
@article{osti_5302643,
title = {Silylene-diethynyl-arylene polymers having liquid crystalline properties},
author = {Barton, T J and Yiwei, Ding},
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}
}
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