Grafting of Syndiotactic Polystyrene by Branched Oligoethene Using [Ni(π-methallyl)(Br)]2/AlCl3 Catalyst

Shengsheng Liu, Ayusman Sen

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

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.

Original languageEnglish (US)
Pages (from-to)446-451
Number of pages6
JournalJournal of Polymer Science, Part A: Polymer Chemistry
Volume39
Issue number3
DOIs
StatePublished - Feb 1 2001

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Polystyrenes
X ray diffraction
Catalysts
Polymers
Grafts
Melting point
Differential scanning calorimetry
Nuclear magnetic resonance
aluminum chloride

All Science Journal Classification (ASJC) codes

  • Polymers and Plastics
  • Organic Chemistry
  • Materials Chemistry

Cite this

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abstract = "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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Grafting of Syndiotactic Polystyrene by Branched Oligoethene Using [Ni(π-methallyl)(Br)]2/AlCl3 Catalyst. / Liu, Shengsheng; Sen, Ayusman.

In: Journal of Polymer Science, Part A: Polymer Chemistry, Vol. 39, No. 3, 01.02.2001, p. 446-451.

Research output: Contribution to journalArticle

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