| abstract |
The present invention relates to a polymer, an organic layer composition and a method of forming a pattern. The polymer includes a structural unit represented by Chemical Formula 1: wherein Ar 1 and Ar 2 are independently substituted or unsubstituted benzene rings or include two to four fused substituted or unsubstituted benzene rings The aromatic rings of A 1 and A 2 are independently substituted or unsubstituted aromatic rings, provided that at least one of A 1 and A 2 is substituted with a hydrogen-bondable functional group, and the hydrogen of A 1 The sum of the number of bondable functional groups and the number of hydrogen bondable functional groups of A 2 is greater than or equal to 3, L is a divalent organic group, and * is a point of attachment. The polymers of the present invention have satisfactory solubility characteristics as well as excellent mechanical characteristics, etch resistance and heat resistance. [Chemical formula 1] The Chemical Formula 1 is the same as that defined in the detailed description. |