Fl�ssigkristalline asymmetrische Bisphenyl-4,4?-bibenzyldicarboxylate und Polysiloxane mit Bisphenyl-4,4?-bibenzyldicarboxylat-Bausteinen in den Seitenketten, Synthese und Charakterisierung [1, 2]
摘要:
Asymmetric bisphenyl bibenzyl-4,4'-dicarboxylates with an alkenyloxy- or the 10-undecenoylgroup in the p-position of one terminal benzene ring and the butyl-, an alkoxy- or the thiomethylgroup in the p-position of the other terminal benzene ring (12-14) are synthesized. The olefins 12-14 are added to a poly(methylhydrogensiloxane) 15 to give mesomorphic side chain polysiloxanes 16-18.Data of liquid crystalline properties of 12-14, 16-18 and precursors are discussed.
Synthesis and Polymerization of Liquid Crystals Containing Vinyl and Mercapto Groups
作者:Johan Lub、Dirk Jan Broer、Nel van den Broek
DOI:10.1002/jlac.199719971116
日期:1997.11
Liquid-crystalline monomers containingtwovinylgroups, two mercapto groups, or a 1:1 combination of the two have been synthesized and characterized in terms of their mesomorphic properties. These monomers can be photopolymerized in situ in an appropriate ratio of vinyl and mercapto groups to form highly ordered liquid-crystalline main-chain polymers. During polymerization in the nematic phase the appearance
Polar group-containing olefin copolymer, process for preparing the same, thermoplastic resin composition contaning the copolymer, and uses thereof
申请人:MITSUI CHEMICALS, INC.
公开号:EP1186619A2
公开(公告)日:2002-03-13
The present invention is intended to provide a polar group-containing olefin copolymer having excellent adhesion properties to metals or polar resins and excellent compatibility therewith, a process for preparing the copolymer, a thermoplastic resin composition containing the copolymer, and uses thereof. The polar group-containing olefin copolymer comprises a constituent unit derived from an α-olefin of 2 to 20 carbon atoms, and a constituent unit derived from a straight-chain, branched or cyclic polar group-containing monomer having at the end a polar group such as a hydroxyl group or an epoxy group and/or a constituent unit derived from a macromonomer having at the end a polymer segment obtained by anionic polymerization, ring-opening polymerization or polycondensation. The polar group-containing olefin copolymer can be prepared by polymerizing the α-olefin with the polar group-containing monomer and/or the macromonomer in the presence of a metallocene catalyst. The polar group-containing olefin copolymer and the thermoplastic resin composition containing the copolymer are used for films, sheets, modifiers, building/civil engineering materials, automobile exterior trim, electric/electronic parts, coating bases, compatibilizing agents, etc.
Polar group-containing olefin copolymer, process for preparing the same, thermoplastic resin composition containing the copolymer, and uses thereof
申请人:——
公开号:US20020156207A1
公开(公告)日:2002-10-24
The present invention is intended to provide a polar group-containing olefin copolymer having excellent adhesion properties to metals or polar resins and excellent compatibility therewith, a process for preparing the copolymer, a thermoplastic resin composition containing the copolymer, and uses thereof. The polar group-containing olefin copolymer comprises a constituent unit derived from an &agr;-olefin of 2 to 20 carbon atoms, and a constituent unit derived from a straight-chain, branched or cyclic polar group-containing monomer having at the end a polar group such as a hydroxyl group or an epoxy group and/or a constituent unit derived from a macromonomer having at the end a polymer segment obtained by anionic polymerization, ring-opening polymerization or polycondensation. The polar group-containing olefin copolymer can be prepared by polymerizing the &agr;-olefin with the polar group-containing monomer and/or the macromonomer in the presence of a metallocene catalyst. The polar group-containing olefin copolymer and the thermoplastic resin composition containing the copolymer are used for films, sheets, modifiers, building/civil engineering materials, automobile exterior trim, electric/electronic parts, coating bases, compatibilizing agents, etc.