Processes for microemulsion polymerization employing novel microemulsion systems
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United States of America Patent
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Jun 12, 1990
Issued Date -
N/A
app pub date -
Nov 22, 1988
filing date -
Nov 27, 1987
priority date (Note) -
Expired
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Abstract
This invention is directed to a microemulsion system comprising a first phase including a low-polarity fluid material which is a gas at standard temperature and pressure, and which has a cloud-point density. It also includes a second phase including a polar fluid, typically water, a monomer, preferably a monomer soluble in the polar fluid, and a microemulsion promoter for facilitating the formation of micelles including the monomer in the system. In the subject process, micelles including the monomer are formed in the first phase. A polymerization initiator is introduced into the micelles in the microemulsion system. The monomer is then polymerized in the micelles, preferably in the core of the micelle, to produce a polymeric material having a relatively high molecular weight.
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