▎ 摘　　要

NOVELTY - A polymer composition comprises 40-99 wt.% polyalkenamer derived from 5-12C cycloalkene in which polyalkenamer has a trans-isomer content of greater than or equal to 50 wt.% based on a weight of the polyalkenamer, and 1-60 wt.% graphene, based on total weight of polymer composition. USE - A polymer composition for molded article selected from board, film, bristle, or foam, for use as clothing material, sport material, sealing material, electrically conductive article, friction control material, transportation material, or structural material (all claimed). ADVANTAGE - The graphene masterbatch can introduce superior performances in electrical conductivity, thermal conductivity and mechanical strengths into the polymer matrix. Benefiting from low melting point and high dispersity of polyalkenamer in numerous polymers, graphene can be dispersed uniformly in the polymer mixture, and aggregation can be controlled and reduced. Besides the good dispersity of polyalkenamer in various polymers, the masterbatch may bring elasticity and resilience of polyalkenamer into the polymer matrix to which the masterbatch is added. The polyalkenamer will reduce the negative impact of graphene to elongation, elasticity, resilience, or other mechanical properties of the polymer matrix. As polyalkenamer also serves a processing aid or plasticizer, addition of masterbatch may improve processability of the final composition. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for molded article which is produced from the polymer composition.