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1991•Acta Polymerica SinicaRequires access

STRUCTURE AND PROPERTIES OF ETHYLENE-PROPYLENE BLOCK COPOLYMERS

Fusheng Yu

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Abstract

The structure and properties of commercial ethylene-propylene block copolymers have been studied by a series of techniques. The results obtained show that the ethylene-propylene block copolymers may be a mixture of PP, PP-b-EPR, EPR and PE, and the thermal properties of the ethylene-propylene block copolymers are influenced by the random copolymeriza-tion of ethene with residual propene in the sequential copolymerization process. Meanwhile, the multi-phase structure of ethylene-propylene block copolymers was revealed by DMA and SEM.

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What this paper is about

The structure and properties of commercial ethylene-propylene block copolymers have been studied by a series of techniques. The results obtained show that the ethylene-propylene block copolymers may be a mixture of PP, PP-b-EPR, EPR and PE, and the thermal properties of the ethylene-propylene block copolymers are influenced by the random copolymeriza-tion of ethene with residual propene in the sequential copolymerization process. Meanwhile, the multi-phase structure of ethylene-propylene block copolymers was revealed by DMA and SEM.

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Available abstract

The structure and properties of commercial ethylene-propylene block copolymers have been studied by a series of techniques. The results obtained show that the ethylene-propylene block copolymers may be a mixture of PP, PP-b-EPR, EPR and PE, and the thermal properties of the ethylene-propylene block copolymers are influenced by the random copolymeriza-tion of ethene with residual propene in the sequential copolymerization process. Meanwhile, the multi-phase structure of ethylene-propylene block copolymers was revealed by DMA and SEM.

Key concepts: Copolymer, Ethylene propylene rubber, Ethylene, Materials science, Propene, Polymer chemistry, Block (permutation group theory), Chemical engineering

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