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Title: Methods for the synthesis and polymerization of .alpha.,.alpha.'-dihalo-p-xylenes

Abstract

The present invention describes an improved method for the polymerization of .alpha.,.alpha.-dihalo-p-xylene's such as the .alpha.,.alpha.'-dihalo-2-methoxy-5-(2-ethylhexyloxy)-xylene's. The procedure for synthesis is based on the specific order of addition of reagents and the use of an anionic initiator that allows control of the molecular weight of the polymer. The molecular weight control allows processability of the polymer which is important for its utility in applications including in light-emitting-diodes, field effect transistors and photovoltaic devices.

Inventors:
 [1];  [2]
  1. Coppell, TX
  2. Garland, TX
Issue Date:
Research Org.:
Univ. of Texas at Dallas, Richardson, TX (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
947164
Patent Number(s):
6426399
Application Number:
09/502,953
Assignee:
Board of Regents, The University of Texas System (Austin, TX)
Patent Classifications (CPCs):
C - CHEMISTRY C08 - ORGANIC MACROMOLECULAR COMPOUNDS C08G - MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
Resource Type:
Patent
Country of Publication:
United States
Language:
English

Citation Formats

Ferraris, John P, and Neef, Charles J. Methods for the synthesis and polymerization of .alpha.,.alpha.'-dihalo-p-xylenes. United States: N. p., 2002. Web.
Ferraris, John P, & Neef, Charles J. Methods for the synthesis and polymerization of .alpha.,.alpha.'-dihalo-p-xylenes. United States.
Ferraris, John P, and Neef, Charles J. Tue . "Methods for the synthesis and polymerization of .alpha.,.alpha.'-dihalo-p-xylenes". United States. https://www.osti.gov/servlets/purl/947164.
@article{osti_947164,
title = {Methods for the synthesis and polymerization of .alpha.,.alpha.'-dihalo-p-xylenes},
author = {Ferraris, John P and Neef, Charles J},
abstractNote = {The present invention describes an improved method for the polymerization of .alpha.,.alpha.-dihalo-p-xylene's such as the .alpha.,.alpha.'-dihalo-2-methoxy-5-(2-ethylhexyloxy)-xylene's. The procedure for synthesis is based on the specific order of addition of reagents and the use of an anionic initiator that allows control of the molecular weight of the polymer. The molecular weight control allows processability of the polymer which is important for its utility in applications including in light-emitting-diodes, field effect transistors and photovoltaic devices.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2002},
month = {7}
}

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Works referenced in this record:

Radical as well as anionic polymerisation mechanisms in the synthesis of poly(p-arylene vinylene) precursors
journal, November 1999


A New Family of Highly Emissive Soluble Poly( p -phenylene vinylene) Derivatives. A Step toward Fully Conjugated Blue-Emitting Poly( p -phenylene vinylenes)
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General Methodology toward Soluble Poly( p -phenylenevinylene) Derivatives
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Photovoltaic and photoconductive properties of aluminum/poly(p-phenylene vinylene) interfaces
journal, February 1994


Polymerization of α-halogenated p-xylenes with base
journal, June 1966


The effect of radical trapping reagents upon formation of poly(α-tetrahydrothiophenio para-xylylene) polyelectrolytes by the wessling soluble precursor method
journal, September 1992


Polymerization of .alpha.,.alpha.'-bis(dialkylsulfonio)-p-xylene dihalides via p-xylylene intermediates: evidence for a nonradical mechanism
journal, October 1988