发明名称 |
PREPARATION OF HOMO-, CO- AND TERPOLYMERS OF SUBSTITUTED STYRENES |
摘要 |
A novel one-pot cost efficient process for the preparation of homo-, co- and terpolymers of p-hydroxystyrene or substituted p-hydroxystyrene and alkyl acrylates. The process involves polymerization of esters of p-hydroxystyrene (or its substituted analogs), alkyl acrylate monomers and/or one or more of ethylenically unsaturated monomers in an alcohol solvent in the presence of a free radical initiator. The reaction mixture containing the so formed polymer is subjected to transesterification conditions using a catalytic amount of catalyst to result in co- and/or terpolymers of p-hydroxystyrene without cleavage of the alkyl ester in the acrylate repeat unit, and then removing the catalyst from the system. Preferred embodiments include homopolymers of p-hydroxystyrene, copolymer of p-hydroxystyrene and tert-butyl acrylate and terpolymer of p-hydroxystyrene, tert-butyl acrylate and styrene. These polymers have a wide variety of applications including as photoresists in microelectronics industry. |
申请公布号 |
AU2003223575(A1) |
申请公布日期 |
2003.11.03 |
申请号 |
AU20030223575 |
申请日期 |
2003.04.10 |
申请人 |
DUPONT ELECTRONIC TECHNOLOGIES L.P. |
发明人 |
MICHAEL, T. SHEEHAN;JAMES, R. SOUNIK |
分类号 |
G03F7/039;C08F6/00;C08F6/02;C08F6/04;C08F8/00;C08F8/12;C08F8/14;C08F212/14;G03F7/004 |
主分类号 |
G03F7/039 |
代理机构 |
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代理人 |
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