Functionalization of 7-oxanorbornene and its ring-opening metathesis polymerization

Fengxiang Chen; Jiaxin Shi; Huijing Han; Jingya Dang; Yi Kong; Meiran Xie

doi:10.3724/sp.j.1105.2007.00383

Functionalization of 7-oxanorbornene and its ring-opening metathesis polymerization

Fengxiang Chen, Jiaxin Shi, Huijing Han, Jingya Dang, Yi Kong, Meiran Xie

School of Chemistry and Molecular Engineering

East China Normal University

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

3 Scopus citations

Abstract

A novel norbornene derivative containing oxyethylene repeating unit and imidazolium ionic moiety was designed and synthesized. The monomer was polymerized via ring-opening metathesis polymerization initiated by Grubbs catalysts (PCy₃)₂ Ru(CHPh)Cl₂(1) and (SIMes) (PCy₃)Ru(CHPh)Cl₂ (2). The polymerization reactions were conducted in organic solvents as well as in ionic liquid [ BMIm ] PF₆ under various conditions. The results demonstrated that complex 2 possessed higher catalytic activity than complex 1. The ROMP using 2 as catalyst in organic solvents was not controlled and the resulting molecular weights were much higher than the calculated values, while the polymerization in ionic liquid was homogeneous and the molecular weights of polymers could be preferably controled. The monomer and the polymers were characterized with NMR spectroscopy, DSC and cyclic voltammetry, respectively. The polymer has a glass transition temperature of - 17.34°C and an electrochemical stability window of 3.0 V.

Original language	English
Pages (from-to)	383-388
Number of pages	6
Journal	Acta Polymerica Sinica
Issue number	4
DOIs	https://doi.org/10.3724/sp.j.1105.2007.00383
State	Published - Apr 2007

Keywords

Grubbs catalyst
Ionic liquid
Norbornene derivative
Ring-opening metathesis polymerization

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10.3724/sp.j.1105.2007.00383

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title = "Functionalization of 7-oxanorbornene and its ring-opening metathesis polymerization",

abstract = "A novel norbornene derivative containing oxyethylene repeating unit and imidazolium ionic moiety was designed and synthesized. The monomer was polymerized via ring-opening metathesis polymerization initiated by Grubbs catalysts (PCy3)2 Ru(CHPh)Cl2(1) and (SIMes) (PCy3)Ru(CHPh)Cl2 (2). The polymerization reactions were conducted in organic solvents as well as in ionic liquid [ BMIm ] PF6 under various conditions. The results demonstrated that complex 2 possessed higher catalytic activity than complex 1. The ROMP using 2 as catalyst in organic solvents was not controlled and the resulting molecular weights were much higher than the calculated values, while the polymerization in ionic liquid was homogeneous and the molecular weights of polymers could be preferably controled. The monomer and the polymers were characterized with NMR spectroscopy, DSC and cyclic voltammetry, respectively. The polymer has a glass transition temperature of - 17.34°C and an electrochemical stability window of 3.0 V.",

keywords = "Grubbs catalyst, Ionic liquid, Norbornene derivative, Ring-opening metathesis polymerization",

author = "Fengxiang Chen and Jiaxin Shi and Huijing Han and Jingya Dang and Yi Kong and Meiran Xie",

year = "2007",

month = apr,

doi = "10.3724/sp.j.1105.2007.00383",

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pages = "383--388",

journal = "Acta Polymerica Sinica",

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TY - JOUR

T1 - Functionalization of 7-oxanorbornene and its ring-opening metathesis polymerization

AU - Chen, Fengxiang

AU - Shi, Jiaxin

AU - Han, Huijing

AU - Dang, Jingya

AU - Kong, Yi

AU - Xie, Meiran

PY - 2007/4

Y1 - 2007/4

N2 - A novel norbornene derivative containing oxyethylene repeating unit and imidazolium ionic moiety was designed and synthesized. The monomer was polymerized via ring-opening metathesis polymerization initiated by Grubbs catalysts (PCy3)2 Ru(CHPh)Cl2(1) and (SIMes) (PCy3)Ru(CHPh)Cl2 (2). The polymerization reactions were conducted in organic solvents as well as in ionic liquid [ BMIm ] PF6 under various conditions. The results demonstrated that complex 2 possessed higher catalytic activity than complex 1. The ROMP using 2 as catalyst in organic solvents was not controlled and the resulting molecular weights were much higher than the calculated values, while the polymerization in ionic liquid was homogeneous and the molecular weights of polymers could be preferably controled. The monomer and the polymers were characterized with NMR spectroscopy, DSC and cyclic voltammetry, respectively. The polymer has a glass transition temperature of - 17.34°C and an electrochemical stability window of 3.0 V.

AB - A novel norbornene derivative containing oxyethylene repeating unit and imidazolium ionic moiety was designed and synthesized. The monomer was polymerized via ring-opening metathesis polymerization initiated by Grubbs catalysts (PCy3)2 Ru(CHPh)Cl2(1) and (SIMes) (PCy3)Ru(CHPh)Cl2 (2). The polymerization reactions were conducted in organic solvents as well as in ionic liquid [ BMIm ] PF6 under various conditions. The results demonstrated that complex 2 possessed higher catalytic activity than complex 1. The ROMP using 2 as catalyst in organic solvents was not controlled and the resulting molecular weights were much higher than the calculated values, while the polymerization in ionic liquid was homogeneous and the molecular weights of polymers could be preferably controled. The monomer and the polymers were characterized with NMR spectroscopy, DSC and cyclic voltammetry, respectively. The polymer has a glass transition temperature of - 17.34°C and an electrochemical stability window of 3.0 V.

KW - Grubbs catalyst

KW - Ionic liquid

KW - Norbornene derivative

KW - Ring-opening metathesis polymerization

UR - https://www.scopus.com/pages/publications/34547626415

U2 - 10.3724/sp.j.1105.2007.00383

DO - 10.3724/sp.j.1105.2007.00383

M3 - 文章

AN - SCOPUS:34547626415

SN - 1000-3304

SP - 383

EP - 388

JO - Acta Polymerica Sinica

JF - Acta Polymerica Sinica

IS - 4

ER -

Functionalization of 7-oxanorbornene and its ring-opening metathesis polymerization

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Keywords

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