Biomacrocyclic side-chain liquid crystalline polymers bearing cholesterol mesogens: facile synthesis and topological effect studyElectronic supplementary information (ESI) available. See DOI: 10.1039/c5py01003a
Herein we describe the rational design and facile synthesis of biomacrocyclic side-chain liquid crystalline polymers bearing cholesterol mesogens with three different length methylene spacers ( m = 2, 6, 11) via the combination of reversible addition-fragmentation chain transfer (RAFT) polymerizatio...
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| creator | Zhou, Feng Li, Yiwen Jiang, Ganquan Zhang, Zhengbiao Tu, Yingfeng Chen, Xiaofang Zhou, Nianchen Zhu, Xiulin |
| description | Herein we describe the rational design and facile synthesis of biomacrocyclic side-chain liquid crystalline polymers bearing cholesterol mesogens with three different length methylene spacers (
m
= 2, 6, 11)
via
the combination of reversible addition-fragmentation chain transfer (RAFT) polymerization with Cu(
i
)-catalyzed azide-alkyne cycloaddition (CuAAC) "click" chemistry. The successful cyclization was confirmed by comprehensive characterization including size-exclusion chromatography (SEC), triple detection size-exclusion chromatography (TD-SEC), Fourier transform infrared (FT-IR) and
1
H NMR spectra. Subsequently, the liquid crystalline (LC) phase behaviors of the linear and cyclic polymers were investigated systematically. Both linear and cyclic polymers form the smectic phase and exhibit a similar layer periodicity. However, the cyclic ones exhibit a slightly lower mesophase transition temperature, enthalpy, entropy and smaller textures compared with their linear counterparts. Meanwhile, the smectic C (SmC) phase is preferable in cyclic polymers with a long methylene spacer (
m
= 11) compared with that in the linear one.
Biomacrocyclic side-chain liquid crystalline polymers bearing cholesterol mesogens with three different length methylene spacers were prepared. Meanwhile, the liquid crystalline phase behaviors were investigated systematically. |
| doi_str_mv | 10.1039/c5py01003a |
| format | Article |
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m
= 2, 6, 11)
via
the combination of reversible addition-fragmentation chain transfer (RAFT) polymerization with Cu(
i
)-catalyzed azide-alkyne cycloaddition (CuAAC) "click" chemistry. The successful cyclization was confirmed by comprehensive characterization including size-exclusion chromatography (SEC), triple detection size-exclusion chromatography (TD-SEC), Fourier transform infrared (FT-IR) and
1
H NMR spectra. Subsequently, the liquid crystalline (LC) phase behaviors of the linear and cyclic polymers were investigated systematically. Both linear and cyclic polymers form the smectic phase and exhibit a similar layer periodicity. However, the cyclic ones exhibit a slightly lower mesophase transition temperature, enthalpy, entropy and smaller textures compared with their linear counterparts. Meanwhile, the smectic C (SmC) phase is preferable in cyclic polymers with a long methylene spacer (
m
= 11) compared with that in the linear one.
Biomacrocyclic side-chain liquid crystalline polymers bearing cholesterol mesogens with three different length methylene spacers were prepared. Meanwhile, the liquid crystalline phase behaviors were investigated systematically.</description><identifier>ISSN: 1759-9954</identifier><identifier>EISSN: 1759-9962</identifier><identifier>DOI: 10.1039/c5py01003a</identifier><language>eng</language><creationdate>2015-09</creationdate><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids></links><search><creatorcontrib>Zhou, Feng</creatorcontrib><creatorcontrib>Li, Yiwen</creatorcontrib><creatorcontrib>Jiang, Ganquan</creatorcontrib><creatorcontrib>Zhang, Zhengbiao</creatorcontrib><creatorcontrib>Tu, Yingfeng</creatorcontrib><creatorcontrib>Chen, Xiaofang</creatorcontrib><creatorcontrib>Zhou, Nianchen</creatorcontrib><creatorcontrib>Zhu, Xiulin</creatorcontrib><title>Biomacrocyclic side-chain liquid crystalline polymers bearing cholesterol mesogens: facile synthesis and topological effect studyElectronic supplementary information (ESI) available. See DOI: 10.1039/c5py01003a</title><description>Herein we describe the rational design and facile synthesis of biomacrocyclic side-chain liquid crystalline polymers bearing cholesterol mesogens with three different length methylene spacers (
m
= 2, 6, 11)
via
the combination of reversible addition-fragmentation chain transfer (RAFT) polymerization with Cu(
i
)-catalyzed azide-alkyne cycloaddition (CuAAC) "click" chemistry. The successful cyclization was confirmed by comprehensive characterization including size-exclusion chromatography (SEC), triple detection size-exclusion chromatography (TD-SEC), Fourier transform infrared (FT-IR) and
1
H NMR spectra. Subsequently, the liquid crystalline (LC) phase behaviors of the linear and cyclic polymers were investigated systematically. Both linear and cyclic polymers form the smectic phase and exhibit a similar layer periodicity. However, the cyclic ones exhibit a slightly lower mesophase transition temperature, enthalpy, entropy and smaller textures compared with their linear counterparts. Meanwhile, the smectic C (SmC) phase is preferable in cyclic polymers with a long methylene spacer (
m
= 11) compared with that in the linear one.
Biomacrocyclic side-chain liquid crystalline polymers bearing cholesterol mesogens with three different length methylene spacers were prepared. Meanwhile, the liquid crystalline phase behaviors were investigated systematically.</description><issn>1759-9954</issn><issn>1759-9962</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2015</creationdate><recordtype>article</recordtype><sourceid/><recordid>eNqFj0FLA0EMhQdRsNRevAvxpofW3W5b2R7Vij15qPeSzmbbSHZmnUyF-Zv-IrcgehA0lzx4ed8jxpzn2SjPivLGTtuU5VlW4JHp5bfTcliWs_Hxt55OTs1A9TXrpsgn42LWMx937Bu0wdtkhS0oVzS0O2QHwm97rsCGpBFF2BG0XlJDQWFDGNhtwe68kEYKXqAh9VtyOocaLQuBJhd3pKyAroLou7TfskUBqmuyETTuq7SQTgbvDuX7thVqyEUMCdjVPjQY2Tu4WqyW14DvyIIboRGsiODheTmH38-fmZMaRWnwtfvm4nHxcv80DGrXbeCmg69_zou-ufzLX7dVXfzH-ATVT3wi</recordid><startdate>20150922</startdate><enddate>20150922</enddate><creator>Zhou, Feng</creator><creator>Li, Yiwen</creator><creator>Jiang, Ganquan</creator><creator>Zhang, Zhengbiao</creator><creator>Tu, Yingfeng</creator><creator>Chen, Xiaofang</creator><creator>Zhou, Nianchen</creator><creator>Zhu, Xiulin</creator><scope/></search><sort><creationdate>20150922</creationdate><title>Biomacrocyclic side-chain liquid crystalline polymers bearing cholesterol mesogens: facile synthesis and topological effect studyElectronic supplementary information (ESI) available. See DOI: 10.1039/c5py01003a</title><author>Zhou, Feng ; Li, Yiwen ; Jiang, Ganquan ; Zhang, Zhengbiao ; Tu, Yingfeng ; Chen, Xiaofang ; Zhou, Nianchen ; Zhu, Xiulin</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-rsc_primary_c5py01003a3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2015</creationdate><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Zhou, Feng</creatorcontrib><creatorcontrib>Li, Yiwen</creatorcontrib><creatorcontrib>Jiang, Ganquan</creatorcontrib><creatorcontrib>Zhang, Zhengbiao</creatorcontrib><creatorcontrib>Tu, Yingfeng</creatorcontrib><creatorcontrib>Chen, Xiaofang</creatorcontrib><creatorcontrib>Zhou, Nianchen</creatorcontrib><creatorcontrib>Zhu, Xiulin</creatorcontrib></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Zhou, Feng</au><au>Li, Yiwen</au><au>Jiang, Ganquan</au><au>Zhang, Zhengbiao</au><au>Tu, Yingfeng</au><au>Chen, Xiaofang</au><au>Zhou, Nianchen</au><au>Zhu, Xiulin</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Biomacrocyclic side-chain liquid crystalline polymers bearing cholesterol mesogens: facile synthesis and topological effect studyElectronic supplementary information (ESI) available. See DOI: 10.1039/c5py01003a</atitle><date>2015-09-22</date><risdate>2015</risdate><volume>6</volume><issue>38</issue><spage>6885</spage><epage>6893</epage><pages>6885-6893</pages><issn>1759-9954</issn><eissn>1759-9962</eissn><abstract>Herein we describe the rational design and facile synthesis of biomacrocyclic side-chain liquid crystalline polymers bearing cholesterol mesogens with three different length methylene spacers (
m
= 2, 6, 11)
via
the combination of reversible addition-fragmentation chain transfer (RAFT) polymerization with Cu(
i
)-catalyzed azide-alkyne cycloaddition (CuAAC) "click" chemistry. The successful cyclization was confirmed by comprehensive characterization including size-exclusion chromatography (SEC), triple detection size-exclusion chromatography (TD-SEC), Fourier transform infrared (FT-IR) and
1
H NMR spectra. Subsequently, the liquid crystalline (LC) phase behaviors of the linear and cyclic polymers were investigated systematically. Both linear and cyclic polymers form the smectic phase and exhibit a similar layer periodicity. However, the cyclic ones exhibit a slightly lower mesophase transition temperature, enthalpy, entropy and smaller textures compared with their linear counterparts. Meanwhile, the smectic C (SmC) phase is preferable in cyclic polymers with a long methylene spacer (
m
= 11) compared with that in the linear one.
Biomacrocyclic side-chain liquid crystalline polymers bearing cholesterol mesogens with three different length methylene spacers were prepared. Meanwhile, the liquid crystalline phase behaviors were investigated systematically.</abstract><doi>10.1039/c5py01003a</doi><tpages>9</tpages></addata></record> |
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| title | Biomacrocyclic side-chain liquid crystalline polymers bearing cholesterol mesogens: facile synthesis and topological effect studyElectronic supplementary information (ESI) available. See DOI: 10.1039/c5py01003a |
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