Synthesis and mesomorphic properties of poly(oxyethylene)s containing alkylsulfonylmethyl or alkylthiomethyl side groups

J. C. Lee; M. Y. Lim; K. Oh; Y. G. Kim; H. B. Lee; S. Y. Park; B. L. Farmer

doi:10.1016/S0032-3861(02)00626-2

Synthesis and mesomorphic properties of poly(oxyethylene)s containing alkylsulfonylmethyl or alkylthiomethyl side groups

J. C. Lee, M. Y. Lim, K. Oh, Y. G. Kim, H. B. Lee, S. Y. Park, B. L. Farmer

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

19 Scopus citations

Abstract

(n-Hexadecylsulfonyl)methyl-substituted poly(oxyethylene) (16SP), (n-hexadecylthio)methyl-substituted poly(oxyethylene) (16TP), [(6-n-nonylsulfonyl)hexylthio]methyl-substituted poly(oxyethylene) (9S6TP), and [(6-n-nonylsulfonyl)hexylsulfonyl]methyl-substituted poly-(oxyethylene) (9S6SP) were synthesized. 9S6SP and 16SP containing sulfonylmethyl side groups showed highly ordered smectic layer structures at room temperature and liquid crystalline behavior at higher temperatures, while 9S6TP and 16TP containing thiomethyl side groups did not show any liquid crystalline behavior. The ordered phases of the polymers were studied using differential scanning calorimetry, cross-polarizing optical microscopy, and X-ray diffraction. The unusual liquid crystallinity of 16SP and 9S6SP was ascribed to the amphiphilic character of these polymers.

Original language	English
Pages (from-to)	7051-7061
Number of pages	11
Journal	Polymer
Volume	43
Issue number	25
DOIs	https://doi.org/10.1016/S0032-3861(02)00626-2
State	Published - 28 Oct 2002

Keywords

Liquid crystalline polymer
Poly (oxyethylene)
Side chain crystallization

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10.1016/S0032-3861(02)00626-2

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@article{28c3996585754c75808fd319891e50ec,

title = "Synthesis and mesomorphic properties of poly(oxyethylene)s containing alkylsulfonylmethyl or alkylthiomethyl side groups",

abstract = "(n-Hexadecylsulfonyl)methyl-substituted poly(oxyethylene) (16SP), (n-hexadecylthio)methyl-substituted poly(oxyethylene) (16TP), [(6-n-nonylsulfonyl)hexylthio]methyl-substituted poly(oxyethylene) (9S6TP), and [(6-n-nonylsulfonyl)hexylsulfonyl]methyl-substituted poly-(oxyethylene) (9S6SP) were synthesized. 9S6SP and 16SP containing sulfonylmethyl side groups showed highly ordered smectic layer structures at room temperature and liquid crystalline behavior at higher temperatures, while 9S6TP and 16TP containing thiomethyl side groups did not show any liquid crystalline behavior. The ordered phases of the polymers were studied using differential scanning calorimetry, cross-polarizing optical microscopy, and X-ray diffraction. The unusual liquid crystallinity of 16SP and 9S6SP was ascribed to the amphiphilic character of these polymers.",

keywords = "Liquid crystalline polymer, Poly (oxyethylene), Side chain crystallization",

author = "Lee, {J. C.} and Lim, {M. Y.} and K. Oh and Kim, {Y. G.} and Lee, {H. B.} and Park, {S. Y.} and Farmer, {B. L.}",

year = "2002",

month = oct,

day = "28",

doi = "10.1016/S0032-3861(02)00626-2",

language = "English",

volume = "43",

pages = "7051--7061",

journal = "Polymer",

issn = "0032-3861",

publisher = "Elsevier B.V.",

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TY - JOUR

T1 - Synthesis and mesomorphic properties of poly(oxyethylene)s containing alkylsulfonylmethyl or alkylthiomethyl side groups

AU - Lee, J. C.

AU - Lim, M. Y.

AU - Oh, K.

AU - Kim, Y. G.

AU - Lee, H. B.

AU - Park, S. Y.

AU - Farmer, B. L.

PY - 2002/10/28

Y1 - 2002/10/28

N2 - (n-Hexadecylsulfonyl)methyl-substituted poly(oxyethylene) (16SP), (n-hexadecylthio)methyl-substituted poly(oxyethylene) (16TP), [(6-n-nonylsulfonyl)hexylthio]methyl-substituted poly(oxyethylene) (9S6TP), and [(6-n-nonylsulfonyl)hexylsulfonyl]methyl-substituted poly-(oxyethylene) (9S6SP) were synthesized. 9S6SP and 16SP containing sulfonylmethyl side groups showed highly ordered smectic layer structures at room temperature and liquid crystalline behavior at higher temperatures, while 9S6TP and 16TP containing thiomethyl side groups did not show any liquid crystalline behavior. The ordered phases of the polymers were studied using differential scanning calorimetry, cross-polarizing optical microscopy, and X-ray diffraction. The unusual liquid crystallinity of 16SP and 9S6SP was ascribed to the amphiphilic character of these polymers.

AB - (n-Hexadecylsulfonyl)methyl-substituted poly(oxyethylene) (16SP), (n-hexadecylthio)methyl-substituted poly(oxyethylene) (16TP), [(6-n-nonylsulfonyl)hexylthio]methyl-substituted poly(oxyethylene) (9S6TP), and [(6-n-nonylsulfonyl)hexylsulfonyl]methyl-substituted poly-(oxyethylene) (9S6SP) were synthesized. 9S6SP and 16SP containing sulfonylmethyl side groups showed highly ordered smectic layer structures at room temperature and liquid crystalline behavior at higher temperatures, while 9S6TP and 16TP containing thiomethyl side groups did not show any liquid crystalline behavior. The ordered phases of the polymers were studied using differential scanning calorimetry, cross-polarizing optical microscopy, and X-ray diffraction. The unusual liquid crystallinity of 16SP and 9S6SP was ascribed to the amphiphilic character of these polymers.

KW - Liquid crystalline polymer

KW - Poly (oxyethylene)

KW - Side chain crystallization

UR - http://www.scopus.com/inward/record.url?scp=0037190755&partnerID=8YFLogxK

U2 - 10.1016/S0032-3861(02)00626-2

DO - 10.1016/S0032-3861(02)00626-2

M3 - Article

AN - SCOPUS:0037190755

SN - 0032-3861

VL - 43

SP - 7051

EP - 7061

JO - Polymer

JF - Polymer

IS - 25

ER -

Synthesis and mesomorphic properties of poly(oxyethylene)s containing alkylsulfonylmethyl or alkylthiomethyl side groups

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Keywords

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