By studying the catalyst,mole ratio of phenol to formaldehyde and reaction time etc. ,introducing the synthesis procedure of high-ortho novolak resin.

• 讨论了催化剂、苯酚与甲醛的摩尔比、反应时间等诸因素的影响,研究了高邻位热塑性酚醛树脂的合成工艺。