广州化工
廣州化工
엄주화공
GUANGZHOU CHEMICAL INDUSTRY AND TECHNOLOGY
2011年
23期
71-73,126
,共4页
甲基丙烯腈%甲基丙烯酸%微细孔结构%聚甲基丙烯酰亚胺泡沫
甲基丙烯腈%甲基丙烯痠%微細孔結構%聚甲基丙烯酰亞胺泡沫
갑기병희정%갑기병희산%미세공결구%취갑기병희선아알포말
methacrylonitrile%methacrylic acid%microporous%polymethacrylimide foams
以甲基丙烯腈（MAN）、甲基丙烯酸（MAA）为单体、丙烯酰胺（AM）为第三单体、偶氮二异丁腈（AIBN）为引发剂、甲基丙烯酸烯丙酯为交联剂,并加入成核剂RHL-32,通过本体聚合,制备耐高温微细孔结构聚甲基丙烯酰亚胺（PMI）泡沫。借助FTIR、DSC、TG、光学显微镜等手段对于共聚物结构和发泡过程进行了分析。结果表明,聚合物在发泡和热处理中发生多种成环反应,除生成PMI泡沫需要的六元酰亚胺环,还生成酸酐环等。成核剂RHL-32的加入能有效降低PMI泡沫的孔径,通过调节RHL-32的量可得到合适的泡沫孔径。
以甲基丙烯腈（MAN）、甲基丙烯痠（MAA）為單體、丙烯酰胺（AM）為第三單體、偶氮二異丁腈（AIBN）為引髮劑、甲基丙烯痠烯丙酯為交聯劑,併加入成覈劑RHL-32,通過本體聚閤,製備耐高溫微細孔結構聚甲基丙烯酰亞胺（PMI）泡沫。藉助FTIR、DSC、TG、光學顯微鏡等手段對于共聚物結構和髮泡過程進行瞭分析。結果錶明,聚閤物在髮泡和熱處理中髮生多種成環反應,除生成PMI泡沫需要的六元酰亞胺環,還生成痠酐環等。成覈劑RHL-32的加入能有效降低PMI泡沫的孔徑,通過調節RHL-32的量可得到閤適的泡沫孔徑。
이갑기병희정（MAN）、갑기병희산（MAA）위단체、병희선알（AM）위제삼단체、우담이이정정（AIBN）위인발제、갑기병희산희병지위교련제,병가입성핵제RHL-32,통과본체취합,제비내고온미세공결구취갑기병희선아알（PMI）포말。차조FTIR、DSC、TG、광학현미경등수단대우공취물결구화발포과정진행료분석。결과표명,취합물재발포화열처리중발생다충성배반응,제생성PMI포말수요적륙원선아알배,환생성산항배등。성핵제RHL-32적가입능유효강저PMI포말적공경,통과조절RHL-32적량가득도합괄적포말공경。
The thermostable microporous polymethacrylimide foams was studied.Using methacrylonitrile,methacrylic acid and acrylamide as monomers,AIBN as initiator,allyl methacrylate as crosslinker,RHL-32 as nucleating agent,using bulk polymerization,the thermostable microporous polymethacrylimide foams was prepared.The terpolymer molecular structure was studied via FTIR,DSC,TG and optical microscope.The results showed that there were a variety of cyclization reaction in the case of high temperature.Nucleating agent RHL-32 can effectively reduce the aperture of the PMI foam.By adjusting the amount of available RHL-32 can prepare suitable aperture PMI foam.
