含三嗪环的超支化聚酯丙烯酸酯的合成和应用

Synthesis and Application of Hyperbranched Polyester Acrylate Containing Triazine Ring

以丙烯酸甲酯和二乙醇胺为原料,制得N,N-二羟乙基-3-胺基丙酸甲酯(DAMP);接着,用DAMP与三羟乙基异氰脲酸酯(THEIC)经酯交换反应,合成出一种超支化聚酯多元醇;再以该多元醇与丙烯酸通过酯化反应,制备了可UV固化的超支化聚酯丙烯酸酯。实验结果表明:以对甲苯磺酸为催化剂,当THEIC与DAMP的物质的量比为1∶9时,可制得二代超支化聚酯多元醇;该聚酯丙烯酸酯的玻璃化温度为53.0℃,与环氧丙烯酸酯(9104)混合组成的组合物,具有固化速度快、固化膜柔韧性佳的特点;附着力可达0级,摆杆硬度为0.751。

Synthesis N,N-bis-（hydroxyethyl）-3-amino methyl ester（DAMP） by methyl acrylate and diethanolamine.Then,DAMP react with tri（2-hydroxyethyl）-isocyanurate（THEIC） via transesterification reaction prepared a hyperbranched polyester polyol,after esterification of acrylic acid synthesis a hyperbranched polyester acrylate.After UV curing it,a film was prepared.Study show that the second-generation of hyperbranched polyester polyol can be obtained when the mole ratio of THEIC and DAMP was 1∶9 in the presence of p-toluenesulphonic acid.Its polyester acrylate get a glass transition temperature of 53.0 ℃.The curing speed of the composition which mixed with the Polyester acrylate and epoxy acrylate（9104） was really fast;film got from curing had excellent flexibility,and its adhesion got a grade of 0 with pendulum hardness value of 0.751.