TY - JOUR
T1 - Grafting of Syndiotactic Polystyrene by Branched Oligoethene Using [Ni(π-methallyl)(Br)]2/AlCl3 Catalyst
AU - Liu, Shengsheng
AU - Sen, Ayusman
PY - 2001/2/1
Y1 - 2001/2/1
N2 - The grafting of syndiotactic polystyrene with branched oligoethene was achieved with [Ni(π-methallyl)(Br)]2/AlCl3 as a catalyst. The molar ratio of AlCl3 to Ni(II) is important, and an efficient reaction occurs only with a large excess of AlCl3. The grafted polymers were characterized by NMR, wide-angle X-ray diffraction, and differential scanning calorimetry. The predominant grafts were sec-butyl groups. No melting point was observed for highly grafted polymers, and X-ray diffraction studies indicated that these materials were completely amorphous.
AB - The grafting of syndiotactic polystyrene with branched oligoethene was achieved with [Ni(π-methallyl)(Br)]2/AlCl3 as a catalyst. The molar ratio of AlCl3 to Ni(II) is important, and an efficient reaction occurs only with a large excess of AlCl3. The grafted polymers were characterized by NMR, wide-angle X-ray diffraction, and differential scanning calorimetry. The predominant grafts were sec-butyl groups. No melting point was observed for highly grafted polymers, and X-ray diffraction studies indicated that these materials were completely amorphous.
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U2 - 10.1002/1099-0518(20010201)39:3<446::AID-POLA1012>3.0.CO;2-3
DO - 10.1002/1099-0518(20010201)39:3<446::AID-POLA1012>3.0.CO;2-3
M3 - Article
AN - SCOPUS:0346608549
SN - 0887-624X
VL - 39
SP - 446
EP - 451
JO - Journal of Polymer Science, Part A: Polymer Chemistry
JF - Journal of Polymer Science, Part A: Polymer Chemistry
IS - 3
ER -