Abstract:In this paper, a series of polyethylene terephthalate‐polyethylene naphthalate copolymer (PETN) composites with high oxygen barrier properties are prepared by introducing trace of graphene oxide (GO) during the in situ polymerization. The single‐layer GO nanosheets with large lateral size (≈1.8 µm) and abundant functional groups are prepared by a combination of chemical exfoliation and solvent exchange. During the in situ polymerization process, some surface region of GO is grafted by PETN molecular chains wit… Show more
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