Preparation of syndiotactic polystyrene having bimodal molecular weight distribution with dinuclear titanocenes

Dong Ho Lee; Keun Byoung Yoon; Seok Kyun Noh; Sang Sun Woo

doi:10.1016/S0032-3861(96)00884-1

Preparation of syndiotactic polystyrene having bimodal molecular weight distribution with dinuclear titanocenes

Dong Ho Lee, Keun Byoung Yoon, Seok Kyun Noh, Sang Sun Woo

Research output: Contribution to journal › Article › peer-review

17 Scopus citations

Abstract

Using a mixture of dinuclear hexamethyltrisiloxanediylbis(cyclopentadienyltitanium trichloride), Cl₃Ti-CpSi(CH₃)₂-O-Si(CH₃) ₂-O-Si(CH₃)₂Cp-TiCl₃ and mononuclear cyclopentadienyltitanium trichloride (CpTiCl₃), pentamethylcyclopentadienyltitanium trichloride (Cp*TiCl₃) with the modified methylaluminoxane cocatalyst in styrene polymerization, the syndiotactic polystyrene having bimodal molecular weight distribution was obtained. The polydispersity index of the obtained polystyrene could be controlled by the relative concentrations of the two or three titanocenes.

Original language	English
Pages (from-to)	1481-1483
Number of pages	3
Journal	Polymer
Volume	38
Issue number	6
DOIs	https://doi.org/10.1016/S0032-3861(96)00884-1
State	Published - Mar 1997

Keywords

Dinuclear titanocene
Mixture of titanocenes
Syndiotactic polystyrene

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10.1016/S0032-3861(96)00884-1

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title = "Preparation of syndiotactic polystyrene having bimodal molecular weight distribution with dinuclear titanocenes",

abstract = "Using a mixture of dinuclear hexamethyltrisiloxanediylbis(cyclopentadienyltitanium trichloride), Cl3Ti-CpSi(CH3)2-O-Si(CH3) 2-O-Si(CH3)2Cp-TiCl3 and mononuclear cyclopentadienyltitanium trichloride (CpTiCl3), pentamethylcyclopentadienyltitanium trichloride (Cp*TiCl3) with the modified methylaluminoxane cocatalyst in styrene polymerization, the syndiotactic polystyrene having bimodal molecular weight distribution was obtained. The polydispersity index of the obtained polystyrene could be controlled by the relative concentrations of the two or three titanocenes.",

keywords = "Dinuclear titanocene, Mixture of titanocenes, Syndiotactic polystyrene",

author = "Lee, {Dong Ho} and Yoon, {Keun Byoung} and Noh, {Seok Kyun} and Woo, {Sang Sun}",

year = "1997",

month = mar,

doi = "10.1016/S0032-3861(96)00884-1",

language = "English",

volume = "38",

pages = "1481--1483",

journal = "Polymer",

issn = "0032-3861",

publisher = "Elsevier B.V.",

number = "6",

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TY - JOUR

T1 - Preparation of syndiotactic polystyrene having bimodal molecular weight distribution with dinuclear titanocenes

AU - Lee, Dong Ho

AU - Yoon, Keun Byoung

AU - Noh, Seok Kyun

AU - Woo, Sang Sun

PY - 1997/3

Y1 - 1997/3

N2 - Using a mixture of dinuclear hexamethyltrisiloxanediylbis(cyclopentadienyltitanium trichloride), Cl3Ti-CpSi(CH3)2-O-Si(CH3) 2-O-Si(CH3)2Cp-TiCl3 and mononuclear cyclopentadienyltitanium trichloride (CpTiCl3), pentamethylcyclopentadienyltitanium trichloride (Cp*TiCl3) with the modified methylaluminoxane cocatalyst in styrene polymerization, the syndiotactic polystyrene having bimodal molecular weight distribution was obtained. The polydispersity index of the obtained polystyrene could be controlled by the relative concentrations of the two or three titanocenes.

AB - Using a mixture of dinuclear hexamethyltrisiloxanediylbis(cyclopentadienyltitanium trichloride), Cl3Ti-CpSi(CH3)2-O-Si(CH3) 2-O-Si(CH3)2Cp-TiCl3 and mononuclear cyclopentadienyltitanium trichloride (CpTiCl3), pentamethylcyclopentadienyltitanium trichloride (Cp*TiCl3) with the modified methylaluminoxane cocatalyst in styrene polymerization, the syndiotactic polystyrene having bimodal molecular weight distribution was obtained. The polydispersity index of the obtained polystyrene could be controlled by the relative concentrations of the two or three titanocenes.

KW - Dinuclear titanocene

KW - Mixture of titanocenes

KW - Syndiotactic polystyrene

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U2 - 10.1016/S0032-3861(96)00884-1

DO - 10.1016/S0032-3861(96)00884-1

M3 - Article

AN - SCOPUS:0031094584

SN - 0032-3861

VL - 38

SP - 1481

EP - 1483

JO - Polymer

JF - Polymer

IS - 6

ER -

Preparation of syndiotactic polystyrene having bimodal molecular weight distribution with dinuclear titanocenes

Abstract

Keywords

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