Synthesis and characterization of H-type amphiphilic liquid crystalline block copolymers by ATRP

Xin De Tang; Long Cheng Gao; Xing He Fan; Qi Feng Zhou

doi:10.1016/j.cclet.2007.11.024

Synthesis and characterization of H-type amphiphilic liquid crystalline block copolymers by ATRP

Xin De Tang^*
, Long Cheng Gao
, Xing He Fan
, Qi Feng Zhou

^*Corresponding author for this work

Shandong Jiaotong University
Peking University

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

4 Scopus citations

Abstract

H-type amphiphilic liquid crystalline block copolymers containing azobenzene were synthesized by atom transfer radical polymerization (ATRP). Macroinitiators prepared by the esterification between poly(ethylene oxide) (PEG) and 2,2-dichloroacetyl chloride were utilized to initiate the polymerization of 6-[4-(4-ethoxyphenylazo)phenoxy]hexyl methacrylate (M6C). The resulting macroinitiators and block copolymers were characterized by ¹H NMR, gel permeation chromatography (GPC). Polarizing optical microscopy (POM) and differential scanning calorimetry (DSC) preliminarily revealed the liquid crystalline property of these block copolymers. This series of liquid crystalline block copolymers are promising in some areas, such as optical data storage, optical switch, and molecular devices.

Original language	English
Pages (from-to)	237-240
Number of pages	4
Journal	Chinese Chemical Letters
Volume	19
Issue number	2
DOIs	https://doi.org/10.1016/j.cclet.2007.11.024
State	Published - Feb 2008
Externally published	Yes

Keywords

Amphiphilic
Atom transfer radical polymerization (ATRP)
Block copolymer
H-type
Liquid crystalline property

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10.1016/j.cclet.2007.11.024

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title = "Synthesis and characterization of H-type amphiphilic liquid crystalline block copolymers by ATRP",

abstract = "H-type amphiphilic liquid crystalline block copolymers containing azobenzene were synthesized by atom transfer radical polymerization (ATRP). Macroinitiators prepared by the esterification between poly(ethylene oxide) (PEG) and 2,2-dichloroacetyl chloride were utilized to initiate the polymerization of 6-[4-(4-ethoxyphenylazo)phenoxy]hexyl methacrylate (M6C). The resulting macroinitiators and block copolymers were characterized by 1H NMR, gel permeation chromatography (GPC). Polarizing optical microscopy (POM) and differential scanning calorimetry (DSC) preliminarily revealed the liquid crystalline property of these block copolymers. This series of liquid crystalline block copolymers are promising in some areas, such as optical data storage, optical switch, and molecular devices.",

keywords = "Amphiphilic, Atom transfer radical polymerization (ATRP), Block copolymer, H-type, Liquid crystalline property",

author = "\{De Tang\}, Xin and \{Cheng Gao\}, Long and \{He Fan\}, Xing and \{Feng Zhou\}, Qi",

year = "2008",

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doi = "10.1016/j.cclet.2007.11.024",

language = "英语",

volume = "19",

pages = "237--240",

journal = "Chinese Chemical Letters",

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publisher = "Elsevier B.V.",

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TY - JOUR

T1 - Synthesis and characterization of H-type amphiphilic liquid crystalline block copolymers by ATRP

AU - De Tang, Xin

AU - Cheng Gao, Long

AU - He Fan, Xing

AU - Feng Zhou, Qi

PY - 2008/2

Y1 - 2008/2

N2 - H-type amphiphilic liquid crystalline block copolymers containing azobenzene were synthesized by atom transfer radical polymerization (ATRP). Macroinitiators prepared by the esterification between poly(ethylene oxide) (PEG) and 2,2-dichloroacetyl chloride were utilized to initiate the polymerization of 6-[4-(4-ethoxyphenylazo)phenoxy]hexyl methacrylate (M6C). The resulting macroinitiators and block copolymers were characterized by 1H NMR, gel permeation chromatography (GPC). Polarizing optical microscopy (POM) and differential scanning calorimetry (DSC) preliminarily revealed the liquid crystalline property of these block copolymers. This series of liquid crystalline block copolymers are promising in some areas, such as optical data storage, optical switch, and molecular devices.

AB - H-type amphiphilic liquid crystalline block copolymers containing azobenzene were synthesized by atom transfer radical polymerization (ATRP). Macroinitiators prepared by the esterification between poly(ethylene oxide) (PEG) and 2,2-dichloroacetyl chloride were utilized to initiate the polymerization of 6-[4-(4-ethoxyphenylazo)phenoxy]hexyl methacrylate (M6C). The resulting macroinitiators and block copolymers were characterized by 1H NMR, gel permeation chromatography (GPC). Polarizing optical microscopy (POM) and differential scanning calorimetry (DSC) preliminarily revealed the liquid crystalline property of these block copolymers. This series of liquid crystalline block copolymers are promising in some areas, such as optical data storage, optical switch, and molecular devices.

KW - Amphiphilic

KW - Atom transfer radical polymerization (ATRP)

KW - Block copolymer

KW - H-type

KW - Liquid crystalline property

UR - https://www.scopus.com/pages/publications/38649084697

U2 - 10.1016/j.cclet.2007.11.024

DO - 10.1016/j.cclet.2007.11.024

M3 - 文章

AN - SCOPUS:38649084697

SN - 1001-8417

VL - 19

SP - 237

EP - 240

JO - Chinese Chemical Letters

JF - Chinese Chemical Letters

IS - 2

ER -

Synthesis and characterization of H-type amphiphilic liquid crystalline block copolymers by ATRP

Abstract

Keywords

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