A production method for polypyridinium having a narrow molecular weight distribution and a desired molecular weight is provided.
Polypyridinium 3 having a narrow molecular weight distribution and a desired molecular weight is synthesized by allowing a pyridine derivative monomer 2 to polymerize on a polymerization initiator 1 such as a specially designed 4-halopyridinium and the like in the presence of a dissolution accelerating agent, such as tetrabutyl ammonium tetrafluoroborate, that dissolves the polymer formed in a solvent as in the chemical below.
where Y represents an anion that dissolves in an organic solvent, X and Z represent halogen atoms, R represents hydrocarbon groups and the like and o is about 1 to 300.
本发明提供了一种具有窄分子量分布和所需分子量的聚
吡啶鎓的生产方法。
具有窄分子量分布和所需分子量的聚
吡啶鎓 3 是通过让
吡啶衍生物单体 2 在聚合
引发剂 1(如专门设计的 4-卤代
吡啶鎓等)上聚合,并在溶解加速剂(如四
氟硼酸四丁基
铵)的存在下合成的,溶解加速剂可将所形成的聚合物溶解在溶剂中,如下
化学式所示。
其中 Y 代表能溶于有机溶剂的阴离子,X 和 Z 代表卤素原子,R 代表烃基等,o 约为 1 至 300。