CAJ | 학술논문

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-d[COOH]/dt=K[COOH][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).
본논문채용일보법,이계무사순작위B4핵단체、2,2-이간갑기병산작AB2형단체합성료초지화취지내핵(HBPE),병대산물진행표정,계산초지화취지적지화도위0.41;탐토병건립료초지화취지적축취반응동역학방정-d[COOH]/dt=K[COOH][OH],해축취반응속우이급반응,반응속솔유최기농도화간기농도공동결정.채용월계산개성초지화취지합성료신적장련완기화적초지화취합물(LHBP),병용홍외화핵자공진보도진행결구표정.용해성질표명월계산개성초지화취지용해우겁성교약적용제중,교미개성적초지화취지구유경호적유궤용제용해성.채용개성후적초지화취지내핵(LHBP)화2-간을알기은곤,통과IPDI우련법합성료초지화취합염료(R-LHBP).
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).