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HYPERBRANCHED CONJUGATIVE MACROMOLECULES CONSTRUCTED FROM TRIPLE-BOND BUILDING BLOCKS
作者姓名:Matthias  H
作者单位:Department of Chemistry The Hong Kong University of Science & Technology Clear Water Bay,Kowloon,Hong Kong,China,Department of Chemistry The Hong Kong University of Science & Technology,Clear Water Bay,Kowloon,Hong Kong,China
基金项目:The Hong Kong Research Grants Council , the University Grants Committee of Hong Kong , 中国科学院资助项目
摘    要:Polycyclotrimerization and polycoupling of acetylenic monomers respectively furnish hyperbranched polyarylenes and polyynes with high molecular weights(up to 1×10~6)in high yields(up to 99.9%).The polymers possess low intrinsic viscosities and high thermal stabilities,losing little of their weights when heated to>400℃.Upon pyrolysis at>800℃,the polymers graphitize with high char yields(up to 86%).Hyperbranched polyarylenes efficiently emit deep-blue to blue-green lights with fluorescence quantum yields up to 98% and strongly attenuate intense laser pulses with optical power-limiting performances superior to that of C_(60),a well-known optical lirniter.Poly(alkenephenylenes),poly(aroylarylenes)and polyynes are readily cross-linkable by UV irradiation,serving as excellent photoresist materials for the generation of patterns with nanometer resolution.Thin films of hyperbranched polyynes exhibit very high refractive indexes(n up to 1.86).The internal and terminal acetylene moieties of the polyynes readily form complexes with cobalt carbonyls,which can be transformed into soft ferromagnetic ceramics with high magnetic susceptibilities(M_s up to ca.118 emu/g)and near-zero magnetic losses.

关 键 词:多环三聚作用  聚合物  聚炔烃  光致抗蚀剂  高温分解
收稿时间:2005-06-05
修稿时间:2005-06-15

HYPERBRANCHED CONJUGATIVE MACROMOLECULES CONSTRUCTED FROM TRIPLE-BOND BUILDING BLOCKS
Matthias Haubler,Hong-chen Dong,Jacky Wing Yip Lam,Rong-hua Zheng,An-jun Qin,Ben-zhong Tang.HYPERBRANCHED CONJUGATIVE MACROMOLECULES CONSTRUCTED FROM TRIPLE-BOND BUILDING BLOCKS[J].Chinese Journal of Polymer Science,2005,0(6):567-591.
Authors:Matthias Haubler  Hong-chen Dong  Jacky Wing Yip Lam  Rong-hua Zheng  An-jun Qin  Ben-zhong Tang
Institution:Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
Abstract:Polycyclotrimerization and polycoupling of acetylenic monomers respectively furnish hyperbranched polyarylenes and polyynes with high molecular weights (up to 1 × 106) in high yields (up to 99.9%). The polymers possess low intrinsic viscosities and high thermal stabilities, losing little of their weights when heated to > 400℃. Upon pyrolysis at > 800℃, the polymers graphitize with high char yields (up to 86%). Hyperbranched polyarylenes efficiently emit deep-blue to blue-green lights with fluorescence quantum yields up to 98% and strongly attenuate intense laser pulses with optical power-limiting performances superior to that of C60, a well-known optical limiter. Poly(alkenephenylenes), poly(aroylarylenes) and polyynes are readily cross-linkable by UV irradiation, serving as excellent photoresist materials for the generation of patterns with nanometer resolution. Thin films of hyperbranched polyynes exhibit very high refractive indexes (n up to 1.86). The internal and terminal acetylene moieties of the polyynes readily form complexes with cobalt carbonyls, which can be transformed into soft ferromagnetic ceramics with high magnetic susceptibilities (Ms up to ca. 118 emu/g) and near-zero magnetic losses.
Keywords:Hyperbranched polymers  Alkyne polycyclotrimerization  Alkyne polycoupling  Polyarylenes  Polyynes  Optical materials  Photoresists  Soft ferromagnetic ceramics  BUILDING BLOCKS  losses  soft ferromagnetic ceramics  internal  terminal  acetylene  form  complexes  cobalt  Thin  films  photoresist  materials  generation  patterns  nanometer  resolution  irradiation  Poly  optical limiter
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