In general the present invention concerns a method for production of highly pure m,m'- coupled bis(4-alkylphenol) derivatives from particular lignin-derived 4-alkylphenol derivatives. More specifically this invention relates to a process for the selective purification of m,m'- coupled bis(4-alkylphenol) derivatives by selective crystallization in the presence of residual substrate and isomeric and/or oligomeric by-products/impurities. This new class of bis(4-alkylphenol)s are valuable precursors for renewable thermoplastics, (high temperature) resins/thermosets, bio-derived C15-C19 fuel additives, antioxidants, UV-stabilizers, plasticizers, soluble n-type perylene copolymers and/or positive working photoresists.
总的来说,本发明涉及一种从特定
木质素衍生的4-烷基
酚衍
生物生产高纯度m,m'-偶联的双(4-烷基
酚)衍
生物的方法。更具体地说,本发明涉及一种通过在残留底物和同分异构体和/或寡聚体副产物/杂质存在下进行选择性结晶实现对m,m'-偶联的双(4-烷基
酚)衍
生物的选择性纯化的方法。这种新类别的双(4-烷基
酚)是可再生热塑性塑料、(高温)
树脂/热固性塑料、
生物衍生的C15-C19燃料添加剂、
抗氧化剂、紫外线稳定剂、
增塑剂、可溶性n-型
苝共聚物和/或正向光刻胶的有价值前体。