NOVEL POLYMER CONTAINING A MODIFIED CYCLIC MONOMER UNIT

摘要

A modified polymer containing a cyclic molecular structure unit represented by general formula (I) and having a number-average molecular weight of 10,000 to 5,000,000, wherein A to F represent monomer units constituting the main chain of the polymer and they may be arranged in an arbitrary order; l to q represent each of the content (wt.-%) of the respective monomer unit A to F based on the total weight of the units A to F; A represents a cycloolefin monomer unit; B represents a conjugated cyclodiene monomer unit; C and D represent each a monomer unit copolymerizable with A and B; S to X represent modifying groups and each independently comprises a functional group bearing at least one of oxygen, nitrogen, sulfur, silicon, phosphorus and halogen, or an organic acid residue containing the above functional group; and s to x represent each the content (wt.-%) of the respective group S to X. The polymer has excellent thermal characteristics and various types of modified polymer can be provided by copolymerizing various monomers in arbitrary proportions and forms in accordance with required thermal and mechanical characteristics.