Structure and properties of impact copolymer polypropylene. I. Chain structure

Structure and properties of impact copolymer polypropylene. I. Chain structure

In this work, impact copolymer polypropylene (ICPP) was fractionated into 4 fractions. ICPP and the 4 fractions were studied using Fourier transform infrared and 13C nuclear magnetic resonance analysis. The results demonstrate that fraction A is ethylene–propylene rubber, fraction B is ethylene–prop...

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Veröffentlicht in:Journal of applied polymer science 1999-01, Vol.71 (1), p.93-101
Hauptverfasser: Hongjun, Cai, Xiaolie, Luo, Dezhu, Ma, Jianmin, Wang, Hongsheng, Tan
Format: Artikel
Sprache:eng
Schlagworte:
Applied sciences
chain structure
composition
Exact sciences and technology
fraction
impact copolymer polypropylene
Organic polymers
Physicochemistry of polymers
Properties and characterization
Structure, morphology and analysis
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Zusammenfassung:In this work, impact copolymer polypropylene (ICPP) was fractionated into 4 fractions. ICPP and the 4 fractions were studied using Fourier transform infrared and 13C nuclear magnetic resonance analysis. The results demonstrate that fraction A is ethylene–propylene rubber, fraction B is ethylene–propylene (EP) segmented copolymer, fraction C is ethylene–propylene block copolymer, and fraction D is polypropylene with a few ethylene monomers in the chain. The differences in properties between different impact copolymer polypropylenes should be due to their fractions' differences in composition and chain sequence structure. © 1999 John Wiley & Sons, Inc. J Appl Polym Sci 71: 93–101, 1999
ISSN:0021-8995
1097-4628
DOI:10.1002/(SICI)1097-4628(19990103)71:1<93::AID-APP12>3.0.CO;2-T