An oxidation polymer of a substituted phenol, obtained by oxidative polymerization of at least one compound selected from the group consisting of a compound of formula (Ia) and a compound of formula (Ib), in which the oxidation polymer has a number-average polymerization degree of 3 or more:
1
wherein R
1
to R
4
each represent a hydrogen atom and the like; provided that at least one of R
1
to R
4
represents a substituted or unsubstituted, saturated hydrocarbon group having 10 or more carbon atoms, and R
1
and/or R
4
represent a hydrogen atom;
2
wherein R
11
represents a substituted or unsubstituted, saturated hydrocarbon group having 15 or more carbon atoms, and R
12
is the same as R
11
, or when R
12
is different from R
11
, R
12
represents a substituted or unsubstituted hydrocarbon group and the like.
一种取代
酚的氧化聚合物,由至少一种选自式(Ia)化合物和式(Ib)化合物的化合物氧化聚合而得,其中氧化聚合物的数均聚合度为 3 或以上:
1
其中 R
1
至 R
4
各自代表氢原子等;条件是 R
1
至 R
4
代表具有 10 个或更多碳原子的取代或未取代的饱和烃基,且 R
1
和/或 R
4
代表氢原子;
2
其中 R
11
代表具有 15 个或更多碳原子的取代或未取代的饱和烃基,且 R
12
与 R
11
或当 R
12
与 R
11
, R
12
代表取代或未取代的烃基等。