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Title: High magnetic field processing of liquid crystalline polymers

Abstract

A process of forming bulk articles of oriented liquid crystalline thermoset material, the material characterized as having an enhanced tensile modulus parallel to orientation of an applied magnetic field of at least 25 percent greater than said material processed in the absence of a magnetic field, by curing a liquid crystalline thermoset precursor within a high strength magnetic field of greater than about 2 Tesla, is provided, together with a resultant bulk article of a liquid crystalline thermoset material, said material processed in a high strength magnetic field whereby said material is characterized as having a tensile modulus parallel to orientation of said field of at least 25 percent greater than said material processed in the absence of a magnetic field.

Inventors:
 [1];  [1];  [1]
  1. Los Alamos, NM
Issue Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
OSTI Identifier:
871990
Patent Number(s):
5840376
Assignee:
Regents of University of California (Los Alamos, NM)
Patent Classifications (CPCs):
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
C - CHEMISTRY C08 - ORGANIC MACROMOLECULAR COMPOUNDS C08G - MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
DOE Contract Number:  
W-7405-ENG-36
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
magnetic; field; processing; liquid; crystalline; polymers; process; forming; bulk; articles; oriented; thermoset; material; characterized; enhanced; tensile; modulus; parallel; orientation; applied; 25; percent; processed; absence; curing; precursor; strength; tesla; provided; resultant; article; whereby; crystalline polymer; liquid crystalline; magnetic field; liquid crystal; applied magnetic; crystalline thermoset; thermoset material; /428/252/

Citation Formats

Smith, Mark E, Benicewicz, Brian C, and Douglas, Elliot P. High magnetic field processing of liquid crystalline polymers. United States: N. p., 1998. Web.
Smith, Mark E, Benicewicz, Brian C, & Douglas, Elliot P. High magnetic field processing of liquid crystalline polymers. United States.
Smith, Mark E, Benicewicz, Brian C, and Douglas, Elliot P. Thu . "High magnetic field processing of liquid crystalline polymers". United States. https://www.osti.gov/servlets/purl/871990.
@article{osti_871990,
title = {High magnetic field processing of liquid crystalline polymers},
author = {Smith, Mark E and Benicewicz, Brian C and Douglas, Elliot P},
abstractNote = {A process of forming bulk articles of oriented liquid crystalline thermoset material, the material characterized as having an enhanced tensile modulus parallel to orientation of an applied magnetic field of at least 25 percent greater than said material processed in the absence of a magnetic field, by curing a liquid crystalline thermoset precursor within a high strength magnetic field of greater than about 2 Tesla, is provided, together with a resultant bulk article of a liquid crystalline thermoset material, said material processed in a high strength magnetic field whereby said material is characterized as having a tensile modulus parallel to orientation of said field of at least 25 percent greater than said material processed in the absence of a magnetic field.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1998},
month = {1}
}

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Works referenced in this record:

Anisotropic Network Formation by Photopolymerization of Liquid Crystal Monomers in a Low Magnetic Field
journal, October 1994


Liquid Crystalline Epoxide Thermosets. Dynamic Mechanical and Thermal Properties
journal, March 1995


The structure of thermotropic copolyesters
journal, June 1986


The mechanical and magnetic alignment of liquid crystalline epoxy thermosets
journal, August 1992


Influence of low magnetic fields on semicrystalline polymers
journal, November 1983


Liquid Crystalline Thermosets As Materials For Microelectronics
journal, January 1991


Rigid-rod thermosets based on 1,3,5-triazine-linked aromatic ester segments
journal, May 1992