Effect of ligand in ethylene/styrene copolymerization by [Me2Si(C5Me4)(NR)]TiCl2 (R = tert-Bu, cyclohexyl) and (1,3-Me2 C5H3) TiCl2(O-2,6- iPr2C6H3)-MAO catalyst system

Kotohiro Nomura, Hiroshi Okumura, Takashi Komatsu, Naofumi Naga, Yukio Imanishi

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

Copolymerization of ethylene with styrene using linked cyclopentadienyl-amide titanium(IV) complexes, [Me2Si(C5Me4) (R)]TiCl2 [R = tert-Bu (1), cyclohexyl (2)], and non-bridged (1,3-Me2 C5H3) TiCl2(O-2,6-iPr2C6H3) (3)-MAO catalysts have been explored. Although the catalytic activity by 2 was lower than 1, 2 showed more efficient styrene incorporation than 1 under the same conditions. Moreover, the resultant copolymer prepared by 2 possessed completely different microstructure from those by 1, indicating that the nature of amide ligand affects both styrene incorporation and monomer sequence.

Original languageEnglish
Pages (from-to)225-234
Number of pages10
JournalJournal of Molecular Catalysis A: Chemical
Volume190
Issue number1-2
DOIs
Publication statusPublished - 2002 Dec 2
Externally publishedYes

Fingerprint

Styrene
Monoamine Oxidase
copolymerization
styrenes
Copolymerization
Ethylene
ethylene
Ligands
Amides
catalysts
amides
ligands
Catalysts
Titanium
catalytic activity
Catalyst activity
copolymers
Copolymers
titanium
monomers

Keywords

  • Constrained geometry catalyst
  • Ethylene/styrene copolymerization
  • Titanium

ASJC Scopus subject areas

  • Catalysis
  • Process Chemistry and Technology

Cite this

Effect of ligand in ethylene/styrene copolymerization by [Me2Si(C5Me4)(NR)]TiCl2 (R = tert-Bu, cyclohexyl) and (1,3-Me2 C5H3) TiCl2(O-2,6- iPr2C6H3)-MAO catalyst system. / Nomura, Kotohiro; Okumura, Hiroshi; Komatsu, Takashi; Naga, Naofumi; Imanishi, Yukio.

In: Journal of Molecular Catalysis A: Chemical, Vol. 190, No. 1-2, 02.12.2002, p. 225-234.

Research output: Contribution to journalArticle

@article{bb1e8ed6f00a41d5b35617bddfac7299,
title = "Effect of ligand in ethylene/styrene copolymerization by [Me2Si(C5Me4)(NR)]TiCl2 (R = tert-Bu, cyclohexyl) and (1,3-Me2 C5H3) TiCl2(O-2,6- iPr2C6H3)-MAO catalyst system",
abstract = "Copolymerization of ethylene with styrene using linked cyclopentadienyl-amide titanium(IV) complexes, [Me2Si(C5Me4) (R)]TiCl2 [R = tert-Bu (1), cyclohexyl (2)], and non-bridged (1,3-Me2 C5H3) TiCl2(O-2,6-iPr2C6H3) (3)-MAO catalysts have been explored. Although the catalytic activity by 2 was lower than 1, 2 showed more efficient styrene incorporation than 1 under the same conditions. Moreover, the resultant copolymer prepared by 2 possessed completely different microstructure from those by 1, indicating that the nature of amide ligand affects both styrene incorporation and monomer sequence.",
keywords = "Constrained geometry catalyst, Ethylene/styrene copolymerization, Titanium",
author = "Kotohiro Nomura and Hiroshi Okumura and Takashi Komatsu and Naofumi Naga and Yukio Imanishi",
year = "2002",
month = "12",
day = "2",
doi = "10.1016/S1381-1169(02)00223-6",
language = "English",
volume = "190",
pages = "225--234",
journal = "Journal of Molecular Catalysis A: Chemical",
issn = "1381-1169",
publisher = "Elsevier",
number = "1-2",

}

TY - JOUR

T1 - Effect of ligand in ethylene/styrene copolymerization by [Me2Si(C5Me4)(NR)]TiCl2 (R = tert-Bu, cyclohexyl) and (1,3-Me2 C5H3) TiCl2(O-2,6- iPr2C6H3)-MAO catalyst system

AU - Nomura, Kotohiro

AU - Okumura, Hiroshi

AU - Komatsu, Takashi

AU - Naga, Naofumi

AU - Imanishi, Yukio

PY - 2002/12/2

Y1 - 2002/12/2

N2 - Copolymerization of ethylene with styrene using linked cyclopentadienyl-amide titanium(IV) complexes, [Me2Si(C5Me4) (R)]TiCl2 [R = tert-Bu (1), cyclohexyl (2)], and non-bridged (1,3-Me2 C5H3) TiCl2(O-2,6-iPr2C6H3) (3)-MAO catalysts have been explored. Although the catalytic activity by 2 was lower than 1, 2 showed more efficient styrene incorporation than 1 under the same conditions. Moreover, the resultant copolymer prepared by 2 possessed completely different microstructure from those by 1, indicating that the nature of amide ligand affects both styrene incorporation and monomer sequence.

AB - Copolymerization of ethylene with styrene using linked cyclopentadienyl-amide titanium(IV) complexes, [Me2Si(C5Me4) (R)]TiCl2 [R = tert-Bu (1), cyclohexyl (2)], and non-bridged (1,3-Me2 C5H3) TiCl2(O-2,6-iPr2C6H3) (3)-MAO catalysts have been explored. Although the catalytic activity by 2 was lower than 1, 2 showed more efficient styrene incorporation than 1 under the same conditions. Moreover, the resultant copolymer prepared by 2 possessed completely different microstructure from those by 1, indicating that the nature of amide ligand affects both styrene incorporation and monomer sequence.

KW - Constrained geometry catalyst

KW - Ethylene/styrene copolymerization

KW - Titanium

UR - http://www.scopus.com/inward/record.url?scp=0037010852&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0037010852&partnerID=8YFLogxK

U2 - 10.1016/S1381-1169(02)00223-6

DO - 10.1016/S1381-1169(02)00223-6

M3 - Article

VL - 190

SP - 225

EP - 234

JO - Journal of Molecular Catalysis A: Chemical

JF - Journal of Molecular Catalysis A: Chemical

SN - 1381-1169

IS - 1-2

ER -