发明名称 Aromatic polyimide silanol compounds, precursors and polymers thereof.
摘要 <p>Silanol-terminated aromatic imide compounds of Formula I &lt;CHEM&gt; where R3 and R4 are each selected from the group consisting of a C1 to C6 alkyl group, an unsubstituted aryl group and a substituted aryl group, Z is a divalent radical are prepared by: (a) reacting a bromoaniline compound with a chosen silylating agent to form a compound having the formula BrC6H5NSi(R1)3Si(R2)3, where R1 and R2 are each a C1 to C4 alkyl group; (b) reacting the compound formed in step "a" with n-butyllithium, followed by reaction with a chosen halogenated alkylsilane compound to form a compound having Formula II &lt;CHEM&gt; where R1, R2, R3, and R4 are as defined above (c) reacting the compound of Formula II formed in step "b sec with a dianhydride compound having the formula &lt;CHEM&gt; where Z is as defined above to form a compound having Formula III &lt;CHEM&gt; where R3, R4, and Z are as defined above (d) hydrolyzing the compound of Formula III formed in step "c" to form the compound of Formula I. The compound of Formula I may be polymerized. A preferred copolymer in accordance with the present invention is formed by polymerizing the compound of Formula I with a silicon compound having the formula &lt;CHEM&gt; where R3 and R4 are as defined above, X = halogen, OH, OR, NRR, or ureido, R is selected from the group consisting of a C1 to C6 alkyl group, an unsubstituted aryl group, and a substituted aryl groups Y = -O- or &lt;CHEM&gt; p = 1 to 10</p>
申请公布号 EP0402632(A2) 申请公布日期 1990.12.19
申请号 EP19900108935 申请日期 1990.05.11
申请人 HUGHES AIRCRAFT COMPANY 发明人 DOUGHERTY, THOMAS K.;GIANTS, THOMAS W.
分类号 G02F1/1337;C07F7/08;C07F7/10;C08G73/10;C08G77/48;C08G77/54;H01L21/027;H01L21/30 主分类号 G02F1/1337
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