ZHU Fangming, LIN Shangan. TITANOCENE CATALYTIC SYNTHESIS OF sPS b aPP BLOCK COPOLYMER AND CHARACTERIZATION[J]. Acta Polymerica Sinica, 1997,(4):462-468.
ZHU Fangming, LIN Shangan. TITANOCENE CATALYTIC SYNTHESIS OF sPS b aPP BLOCK COPOLYMER AND CHARACTERIZATION[J]. Acta Polymerica Sinica, 1997,(4):462-468.DOI:
A novel syndiotactic polystyrene b polypropene(sPS b PP)copolymer was synthesized in this laboratory with homgenous metallocene catalyst of η 5 cyclopentadienyltripropoxy titanium and MAO. The influence factor of monomers feed ratio
catalyst concentration
Al/Ti molar ratio and polymerization temperature on block copolymerization has been investigated.The copolymerization products were fractionated by succesive solvents extration with boiling butanone
boiling heptane and 40℃ THF. The titled block copolymer with 20~30wt % percent of total product