混酚组成对腰果酚—苯酚—甲醛水溶液体系的初始相态及缩聚产物组成的影响

The effect of cardanol─phenol mixture's composition on initial phase state of cardanol─phenol─formalin solution and composition of resultant novolak resins

将腰果酚与液态来酚按不同比例混合形成混酚，再使之与甲醛水溶液在强酸催化下进行共缩聚反应，合成线性树脂，由于因果酚侧链的非极性效应的影响，随混酚中腰果酚的含量的不同，反应体系的初始相态呈均相或两相，影响了缩聚产物的组成。

Firsily, mixture of phenols were made when cardano was mixed with phenol at differmt ratios. Then formaldehyde(37 % )was added to phenols - Under stiong acid catalysis, novolak - tw resins were obtained, boause of non - polar ef-fect of the side chain R on cardanl, caIdanol - Pheno - formaldehyde(37% ) soluh0n would be homogeneous or hetero-geneous depend on the ration of cardanol to phenol and that affect those resins'composition.