Hyperbranched azo-polymers synthesized by acyclic diene metathesis polymerization of an AB2 monomer

Ding Liang; Zhang Liya; Han Huijing; Huang Wei; Song Chunmei; Xie Meiran; Zhang Yiqun

doi:10.1021/ma900412b

Hyperbranched azo-polymers synthesized by acyclic diene metathesis polymerization of an AB2 monomer

Ding Liang, Zhang Liya, Han Huijing, Huang Wei, Song Chunmei, Xie Meiran, Zhang Yiqun

School of Chemistry and Molecular Engineering

East China Normal University

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

13 Scopus citations

Abstract

A novel hyperbranched azo-polymer was prepared by a ruthenium-based catalyst RuCl₂(PCy₃)(SIMes)(CHPh) using acyclic diene metathesis (ADMET) polymerization of an AB2 monomer, 4-undecylenyloxycarbonyl- 40-[bis(2-ethyl acrylate)amino]azobenzene, which was synthesized from the esterification reaction between N,N-bis(2-ethyl acrylate)aniline and 4-carboxy-40-[bis(2-ethyl acrylate)amino] azobenzene. The monomer and polymer were characterized by mass spectrometer, elemental analysis, IR, UV-vis, and NMR measurements. The produced polymers have molecular weights within 5.83 and 23.5 kDa, and their polydispersity indices range from 1.73 to 1.86 by multiangle laser light scattering-gel permeation chromatography (MALLS-GPC). The hyperbranched azo-polymer underwent efficient photoisomerization from trans to cis as observation in UV-vis spectroscopy. The degree of branching (DB) was determined by using ¹H NMR spectroscopy and the values ranged from 0.57 to 0.45.

Original language	English
Pages (from-to)	5036-5042
Number of pages	7
Journal	Macromolecules
Volume	42
Issue number	14
DOIs	https://doi.org/10.1021/ma900412b
State	Published - 28 Jul 2009

Access to Document

10.1021/ma900412b

Cite this

@article{4921f31d349942f0a19790d84482a3fc,

title = "Hyperbranched azo-polymers synthesized by acyclic diene metathesis polymerization of an AB2 monomer",

abstract = "A novel hyperbranched azo-polymer was prepared by a ruthenium-based catalyst RuCl2(PCy3)(SIMes)(CHPh) using acyclic diene metathesis (ADMET) polymerization of an AB2 monomer, 4-undecylenyloxycarbonyl- 40-[bis(2-ethyl acrylate)amino]azobenzene, which was synthesized from the esterification reaction between N,N-bis(2-ethyl acrylate)aniline and 4-carboxy-40-[bis(2-ethyl acrylate)amino] azobenzene. The monomer and polymer were characterized by mass spectrometer, elemental analysis, IR, UV-vis, and NMR measurements. The produced polymers have molecular weights within 5.83 and 23.5 kDa, and their polydispersity indices range from 1.73 to 1.86 by multiangle laser light scattering-gel permeation chromatography (MALLS-GPC). The hyperbranched azo-polymer underwent efficient photoisomerization from trans to cis as observation in UV-vis spectroscopy. The degree of branching (DB) was determined by using 1H NMR spectroscopy and the values ranged from 0.57 to 0.45.",

author = "Ding Liang and Zhang Liya and Han Huijing and Huang Wei and Song Chunmei and Xie Meiran and Zhang Yiqun",

year = "2009",

month = jul,

day = "28",

doi = "10.1021/ma900412b",

language = "英语",

volume = "42",

pages = "5036--5042",

journal = "Macromolecules",

issn = "0024-9297",

publisher = "American Chemical Society",

number = "14",

}

TY - JOUR

T1 - Hyperbranched azo-polymers synthesized by acyclic diene metathesis polymerization of an AB2 monomer

AU - Liang, Ding

AU - Liya, Zhang

AU - Huijing, Han

AU - Wei, Huang

AU - Chunmei, Song

AU - Meiran, Xie

AU - Yiqun, Zhang

PY - 2009/7/28

Y1 - 2009/7/28

N2 - A novel hyperbranched azo-polymer was prepared by a ruthenium-based catalyst RuCl2(PCy3)(SIMes)(CHPh) using acyclic diene metathesis (ADMET) polymerization of an AB2 monomer, 4-undecylenyloxycarbonyl- 40-[bis(2-ethyl acrylate)amino]azobenzene, which was synthesized from the esterification reaction between N,N-bis(2-ethyl acrylate)aniline and 4-carboxy-40-[bis(2-ethyl acrylate)amino] azobenzene. The monomer and polymer were characterized by mass spectrometer, elemental analysis, IR, UV-vis, and NMR measurements. The produced polymers have molecular weights within 5.83 and 23.5 kDa, and their polydispersity indices range from 1.73 to 1.86 by multiangle laser light scattering-gel permeation chromatography (MALLS-GPC). The hyperbranched azo-polymer underwent efficient photoisomerization from trans to cis as observation in UV-vis spectroscopy. The degree of branching (DB) was determined by using 1H NMR spectroscopy and the values ranged from 0.57 to 0.45.

AB - A novel hyperbranched azo-polymer was prepared by a ruthenium-based catalyst RuCl2(PCy3)(SIMes)(CHPh) using acyclic diene metathesis (ADMET) polymerization of an AB2 monomer, 4-undecylenyloxycarbonyl- 40-[bis(2-ethyl acrylate)amino]azobenzene, which was synthesized from the esterification reaction between N,N-bis(2-ethyl acrylate)aniline and 4-carboxy-40-[bis(2-ethyl acrylate)amino] azobenzene. The monomer and polymer were characterized by mass spectrometer, elemental analysis, IR, UV-vis, and NMR measurements. The produced polymers have molecular weights within 5.83 and 23.5 kDa, and their polydispersity indices range from 1.73 to 1.86 by multiangle laser light scattering-gel permeation chromatography (MALLS-GPC). The hyperbranched azo-polymer underwent efficient photoisomerization from trans to cis as observation in UV-vis spectroscopy. The degree of branching (DB) was determined by using 1H NMR spectroscopy and the values ranged from 0.57 to 0.45.

UR - https://www.scopus.com/pages/publications/67651085209

U2 - 10.1021/ma900412b

DO - 10.1021/ma900412b

M3 - 文章

AN - SCOPUS:67651085209

SN - 0024-9297

VL - 42

SP - 5036

EP - 5042

JO - Macromolecules

JF - Macromolecules

IS - 14

ER -

Hyperbranched azo-polymers synthesized by acyclic diene metathesis polymerization of an AB2 monomer

Abstract

Access to Document

Other files and links

Fingerprint

Cite this