以甲苯-2,4-二异氰酸酯(TDI)、聚碳酸酯二醇(PCOL)、二羟甲基丙酸(DMPA)和二乙醇胺(DEOA)为原料合成了一种具有超支化结构的水性聚氨酯,产物具有良好的水溶性.通过红外光谱(FT-IR)和核磁共振(13C-NMR)对产物结构的表征,证实了产物具有超支化结构,其支化度为0.32.用高效液相色谱质谱联用仪(LC-MC)对产物的分子量进行测定,其重均分子量为1.66×104.采用电子拉力机和热失重分析仪(TG)对产物的性能进行测试,结果表明,所制备的水性超支化聚氨酯具有良好的力学性能和热稳定性,并且涂膜具有较好的耐水性.
参考文献
| [1] | Noble KL. .WATERBORNE POLYURETHANES[J].Progress in Organic Coatings: An International Review Journal,1997(1/4):131-136. |
| [2] | Coogan RG. .POST-CROSSLINKING OF WATER-BORNE URETHANES[J].Progress in Organic Coatings: An International Review Journal,1997(1/4):51-63. |
| [3] | C.Gao;D.Yan .Hyperbranched polymers:from synthesis to applications[J].Progress in Polymer Science,2004(3):183-275. |
| [4] | 曾少敏,姚畅,陈爱芳,易昌凤,徐祖顺.超支化聚氨酯的合成及应用[J].高分子通报,2008(03):52-57. |
| [5] | Gao C.;Yan D. ."A(2)+CBn" approach to hyperbranched polymers with alternating ureido and urethano units[J].Macromolecules,2003(3):613-620. |
| [6] | 王黎,唐进伟,童身毅.超支化聚氨酯水分散体的合成及其涂膜性能[J].现代涂料与涂装,2007(04):14-16. |
| [7] | Abdelrehim M;Komber H;Langenwalter J;Voit B;Bruchmann B .Synthesis and characterization of hyperbranched poly(urea-urethane)s based on AA* and B2B* monomers[J].Journal of Polymer Science, Part A. Polymer Chemistry,2004(12):3062-3081. |
| [8] | Lee DK;Tsai HB;Wang HH;Tsai RS .Aqueous polyurethane dispersions derived from polycarbonatediols[J].Journal of Applied Polymer Science,2004(4):1723-1729. |
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