双环戊二烯苯酚树脂的合成新工艺

New Synthetic Process of Dicyclopentadiene Phenol Resin

以双环戊二烯(DCPD)和苯酚为原料,甲磺酸为催化剂,合成了双环戊二烯苯酚树脂。适宜工艺条件:苯酚与DCPD摩尔比为5、反应温度120℃、反应时间5 h、催化剂质量分数为1.5%,收率89%。所得的双环戊二烯苯酚树脂(DPR)经催化加氢法在H2气压力1.5 MPa、催化剂Pd/Al2O3用量为原料质量分数的0.5%、反应温度80℃条件下对树脂进行脱色处理。得到浅黄色双环戊二烯苯酚树脂,收率89%,经IR和1HNMR表征分析其为目的产物,产物指标达到国际同类产品的质量标准。

Dicyclopentadiene phenol resin（DPR） was prepared from dicyclopentadiene and phenol with methane sulfonic acid as the catalyst.The optimum conditions for the synthesis were as follows：n（phenol）/n（DCPD）=5;w（catalyst）=1.5%;temperature=120 ℃;time=5 h;yield=89%.The light yellow dicyclopentadiene phenol resin was obtained by the decolouring of catalytic-hydrogenation.The optimal conditions for the decolorization were as follows：hydrogen pressure=1.5 MPa,w（Pd/Al2O3）=0.5%,temperature=80 ℃,yield=89%.FT-IR and 1H NMR analysis identified the desired product.The product properties reached the international quality standards.