Structure and properties of blends of isotactic polypropylene with ethylene-propylene oil
β Scribed by T. I. Medintseva; S. A. Kuptsov; N. A. Erina; E. V. Prut
- Book ID
- 110197187
- Publisher
- SP MAIK Nauka/Interperiodica
- Year
- 2007
- Tongue
- English
- Weight
- 234 KB
- Volume
- 49
- Category
- Article
- ISSN
- 0965-545X
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## Abstract A spherical TiCl~4~/MgCl~2~βbased catalyst was used in the synthesis of __in situ__ isotactic polypropylene/ethyleneβpropylene random copolymer blends by propylene bulk polymerization and subsequent gasβphase copolymerization of ethylene with propylene. Different copolymerization condit
The crystallization and morphology of reactor-made blends of isotactic polypropylene ( PP ) with a large content of ethylene -propylene rubber ( EPR ) (i.e., ΓΊ 50%) were investigated. In the blends, PP was found to form spherulites during the crystallization process, with the growth rate constant un