一种用于喷墨墨水的超支化聚合染料的合成研究(英文)

本论文采用一步法,以季戊四醇作为B4核单体、2,2-二羟甲基丙酸作AB2型单体合成了超支化聚酯内核(HBPE),并对产物进行表征,计算超支化聚酯的支化度为0.41;探讨并建立了超支化聚酯的缩聚反应动力学方程-dCOOH]/dt=KCOOH]OH],该缩聚反应属于二级反应,反应速率由羧基浓度和羟基浓度共同决定。采用月桂酸改性超支化聚酯合成了新的长链烷基化的超支化聚合物(LHBP),并用红外和核磁共振谱图进行结构表征。溶解性质表明月桂酸改性超支化聚酯溶解于极性较弱的溶剂中,较未改性的超支化聚酯具有更好的有机溶剂溶解性。采用改性后的超支化聚酯内核(LHBP)和2-羟乙胺基蒽醌,通过IPDI偶联法合成了超支化聚合染料(R-LHBP)。

Synthesis and Application of Hyperbranched Polymeric Dyes Used in Ink-jet Ink

The one-pot synthesis of hyperbranched polyester (HBPE) from the pentaerythritol (TMP) as a B4 core and 2, 2-Dimethylolpropionic acid (DMPA) as a AB2 monomer was studied. The hyperbranced struscture had been confirmed by IR、 1H NMR and 13C NMR analysis, and the degree of branching of the polyesters was determined as 0. 41 as well. The reaction kinetics had been studied, too, and the esterification reaction kinetic equation was measured as -d COOH] /dt= K COOH] OH] . The alkylated-terminal hyperbaranched polyester was prepared by further chemical modification of terminal groups. The solubility of the hyperbranched polyester and polymeric dye in solvents were improved by the presence of long alkyl chain in the structure, compared to the hyperbranched polyester without modification. Furthermore, the red hyperbranched polymeric dye (R-LHBP) was prepared by the reaction of 2-hydroxyethylamino-9, 10-anthraquinone with modified hyperbranched polyeste (LHBP).