树状聚合物状星形支化聚甲基丙烯酸甲酯(PMMA)的合成采用发散发散法,该方法涉及α-官能化的活性PMMA与两个叔丁基二甲基甲硅烷氧基甲基苯基(SMP)基团与苄基溴的偶联反应( BnBr)链末端官能化的PMMA以及引入的SMP基团向BnBr官能团的转化反应。通过将这两个反应重复七次,可以成功合成直至第七代的树状聚合物状星形支化PMMA。所得聚合物均在支链结构中定义明确,在链长和末端官能度方面得到精确控制,分子量分布极窄(M w / M n<1.03)。第七代本文PMMA合成为1.97×10 6在中号瓦特值,并且由508个PMMA段。此外,沿其外围显示了512个SMP终点。粘度测量表明,与具有相同分子量的相应线性聚合物相比,每一代中的树状聚合物状星形支化聚合物具有较小的流体力学体积。随着世代的进行,g ′值变小。
Ink jet ink, ink jet recording method, and ink cartridge
申请人:CANON KABUSHIKI KAISHA
公开号:EP2174995B1
公开(公告)日:2012-12-26
INK JET INK, INK JET RECORDING METHOD, AND INK CARTRIDGE
申请人:Nishiguchi Kenji
公开号:US20100086688A1
公开(公告)日:2010-04-08
Provided is an ink jet ink capable of achieving both high colorability and excellent bleeding resistance of an image. The ink jet ink includes at least a pigment and a star polymer in which at least three copolymer chains of α,β-ethylenically unsaturated monomers are bonded to a central skeleton, in which the copolymer chains of the α,β-ethylenically unsaturated monomers are copolymers of at least one first monomer selected from the group consisting of aromatic (meth)acrylates and aromatic (meth)acrylamides and at least one second monomer selected from the group consisting of acid monomers and salts of the acid monomers.
US7977409B2
申请人:——
公开号:US7977409B2
公开(公告)日:2011-07-12
Precise Synthesis of Dendrimer-like Star-Branched Poly(methyl methacrylate)s up to Seventh Generation by an Iterative Divergent Approach Involving Coupling and Transformation Reactions
作者:Akira Hirao、Akira Matsuo、Takumi Watanabe
DOI:10.1021/ma050762k
日期:2005.10.1
The synthesis of dendrimer-like star-branched poly(methyl methacrylate)s (PMMAs) were carried out by an iterative divergent approach which involved a coupling reaction of α-functionalized living PMMA with two tert-butyldimethylsilyloxymethylphenyl (SMP) groups with benzyl bromide (BnBr) chain-end-functionalized PMMA and a transformation reaction of the introduced SMP groups into BnBr functionalities
树状聚合物状星形支化聚甲基丙烯酸甲酯(PMMA)的合成采用发散发散法,该方法涉及α-官能化的活性PMMA与两个叔丁基二甲基甲硅烷氧基甲基苯基(SMP)基团与苄基溴的偶联反应( BnBr)链末端官能化的PMMA以及引入的SMP基团向BnBr官能团的转化反应。通过将这两个反应重复七次,可以成功合成直至第七代的树状聚合物状星形支化PMMA。所得聚合物均在支链结构中定义明确,在链长和末端官能度方面得到精确控制,分子量分布极窄(M w / M n<1.03)。第七代本文PMMA合成为1.97×10 6在中号瓦特值,并且由508个PMMA段。此外,沿其外围显示了512个SMP终点。粘度测量表明,与具有相同分子量的相应线性聚合物相比,每一代中的树状聚合物状星形支化聚合物具有较小的流体力学体积。随着世代的进行,g ′值变小。