Sökning: "Ziegler-Natta catalysts"

Hittade 1 uppsats innehållade orden Ziegler-Natta catalysts.

  1. 1. Study of ethylene/propylene polymerization, using a 4th generation Ziegler-Natta catalyst: Effect of external donor and feed ratio on polymerization

    Uppsats för yrkesexamina på avancerad nivå, KTH/Skolan för kemivetenskap (CHE)

    Författare :Seyedeh Shafagh Dehghani; [2012]
    Nyckelord :Ziegler-Natta catalysts; Electron Donor; Copolymerization; Polyolefins;

    Sammanfattning : A fourth generation multiple site Ziegler-Natta catalyst was used to synthesize ethylene and propylene homo-and copolymers in the presence of hydrogen. This type of catalysts produce polymers with broader molecular weight distribution (MWD), chemical composition distribution (CCD) and stereoregularity than other coordination polymerization catalysts since it has more than one active site. LÄS MER