发明名称 |
Synthesis of vinyl polymers by controlled radical polymerization |
摘要 |
A controlled free radical polymerization process, which includes the steps of: adding a monofunctional iniferter compound to an oxygen-free solvent; heating the solution to a temperature sufficient to allow the iniferter compound to form two carbon centered radical residues; adding a first monomer composition comprising one or more monomers to the solution containing the radical containing residues; polymerizing the first monomer composition to form a quasi-living polymer; and optionally polymerizing a second monomer composition comprising one or more monomers, which are different than the first monomer composition. The resulting non-random copolymer having the general formula: <?in-line-formulae description="In-line Formulae" end="lead"?>phi-[-A<SUB>p</SUB>-B<SUB>s</SUB>-]<SUB>t</SUB>-phi<?in-line-formulae description="In-line Formulae" end="tail"?> where A and B are different compositions of ethylenically unsaturated monomers; p is an integer from 1 to 1,000; s is an integer from 0 to 1,000; t is an integer from 1 to 100; and phi is a residue from the iniferter.
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申请公布号 |
US7351781(B2) |
申请公布日期 |
2008.04.01 |
申请号 |
US20050041154 |
申请日期 |
2005.01.21 |
申请人 |
PPG INDUSTRIES OHIO, INC. |
发明人 |
WHITE DANIELA;O'DWYER JAMES B. |
分类号 |
C08F4/04;C08F2/32;C08F2/38;C08F4/00;C08F293/00 |
主分类号 |
C08F4/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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