Method of converting anionic living end to protected free radical living end and applications thereof
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United States of America Patent
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Oct 9, 2007
Grant Date -
Oct 26, 2006
app pub date -
Apr 22, 2005
filing date -
Apr 22, 2005
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Abstract
Provided is a method of converting an anionic living end to a protected free radical 'living' end in a well-controlled manner, which enables copolymerization by plural mechanisms. The method is particularly useful for copolymerization of anionically polymerizable monomers and free radical polymerizable monomers, and therefore useful for production of PB-g-PS, HIPS, ABS, and MBS etc. Also provided is a reversibly coupled polymer, which, when decoupled, generates 'living' free radical for further copolymer chain reaction.
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