Preparation of a new polymer-dispersed liquid crystal film by using phthalocyanine-functional photocurable copolymer
ABSTRACT A new, asymmetrical zinc phthalocyanine (aZnPc)‐functional photocurable copolymer was prepared by the combination of atom transfer radical polymerization and copper (I)‐catalyzed azide‐alkyne cyclo‐addition (CuAAC) click reaction and used as polymer matrix of polymer dispersed liquid crysta...
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| Veröffentlicht in: | Journal of applied polymer science 2015-03, Vol.132 (10), p.np-n/a |
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| creator | Mert, Humeyra Dinçer, Hatice Çalışkan, Emel Şen, Betül Nur Gürsel, Yeşim Hepuzer |
| description | ABSTRACT
A new, asymmetrical zinc phthalocyanine (aZnPc)‐functional photocurable copolymer was prepared by the combination of atom transfer radical polymerization and copper (I)‐catalyzed azide‐alkyne cyclo‐addition (CuAAC) click reaction and used as polymer matrix of polymer dispersed liquid crystal (PDLC) film. For this purpose, aZnPc was prepared through statistical condensation of 4‐tert‐butylphthalonitrile and 4‐pent‐4‐ynyloxyphthalonitrile. Double CuAAC click reaction between azido‐functional poly(methyl methacrylate‐co‐2‐(2‐bromoisobutyryloxy)‐ethyl methacrylate), terminal alkynyl‐substituted aZnPc, and 4‐ethynyl‐N,N‐dimethyl aniline yielded photocurable aZnPc‐functional copolymer. Thereby, synthesized copolymer was crosslinked in the presence of liquid crystalline mesogen 4′‐(octyloxy)‐4‐biphenylcarbonitrile by ultraviolet irradiation using benzophenone as initiator and ethylene glycol dimethacrylate as difunctional crosslinker. Thermal and optical properties of PDLC film were investigated by using differential scanning calorimetry and polarized optical microscopy. Smectic A liquid crystal mesophases were observed in both PDLC film and its mesogenic component 4′‐(octyloxy)‐4‐biphenylcarbonitrile. © 2014 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015, 132, 41574. |
| doi_str_mv | 10.1002/app.41574 |
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A new, asymmetrical zinc phthalocyanine (aZnPc)‐functional photocurable copolymer was prepared by the combination of atom transfer radical polymerization and copper (I)‐catalyzed azide‐alkyne cyclo‐addition (CuAAC) click reaction and used as polymer matrix of polymer dispersed liquid crystal (PDLC) film. For this purpose, aZnPc was prepared through statistical condensation of 4‐tert‐butylphthalonitrile and 4‐pent‐4‐ynyloxyphthalonitrile. Double CuAAC click reaction between azido‐functional poly(methyl methacrylate‐co‐2‐(2‐bromoisobutyryloxy)‐ethyl methacrylate), terminal alkynyl‐substituted aZnPc, and 4‐ethynyl‐N,N‐dimethyl aniline yielded photocurable aZnPc‐functional copolymer. Thereby, synthesized copolymer was crosslinked in the presence of liquid crystalline mesogen 4′‐(octyloxy)‐4‐biphenylcarbonitrile by ultraviolet irradiation using benzophenone as initiator and ethylene glycol dimethacrylate as difunctional crosslinker. Thermal and optical properties of PDLC film were investigated by using differential scanning calorimetry and polarized optical microscopy. Smectic A liquid crystal mesophases were observed in both PDLC film and its mesogenic component 4′‐(octyloxy)‐4‐biphenylcarbonitrile. © 2014 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015, 132, 41574.</description><identifier>ISSN: 0021-8995</identifier><identifier>EISSN: 1097-4628</identifier><identifier>DOI: 10.1002/app.41574</identifier><identifier>CODEN: JAPNAB</identifier><language>eng</language><publisher>Hoboken: Blackwell Publishing Ltd</publisher><subject>Aniline ; Copolymers ; Crosslinking ; differential scanning calorimetry ; dyes/pigments ; functionalization of polymers ; Liquid crystals ; Materials science ; Polymerization ; Polymers ; Polymethyl methacrylates ; Ultraviolet ; Zinc</subject><ispartof>Journal of applied polymer science, 2015-03, Vol.132 (10), p.np-n/a</ispartof><rights>2014 Wiley Periodicals, Inc.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c3684-d09e0801502e3dd43a89ce1593c4fe56ba46120e8abfcffb659276548bb46cd33</citedby><cites>FETCH-LOGICAL-c3684-d09e0801502e3dd43a89ce1593c4fe56ba46120e8abfcffb659276548bb46cd33</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1002%2Fapp.41574$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1002%2Fapp.41574$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,780,784,1417,27924,27925,45574,45575</link.rule.ids></links><search><creatorcontrib>Mert, Humeyra</creatorcontrib><creatorcontrib>Dinçer, Hatice</creatorcontrib><creatorcontrib>Çalışkan, Emel</creatorcontrib><creatorcontrib>Şen, Betül Nur</creatorcontrib><creatorcontrib>Gürsel, Yeşim Hepuzer</creatorcontrib><title>Preparation of a new polymer-dispersed liquid crystal film by using phthalocyanine-functional photocurable copolymer</title><title>Journal of applied polymer science</title><addtitle>J. Appl. Polym. Sci</addtitle><description>ABSTRACT
A new, asymmetrical zinc phthalocyanine (aZnPc)‐functional photocurable copolymer was prepared by the combination of atom transfer radical polymerization and copper (I)‐catalyzed azide‐alkyne cyclo‐addition (CuAAC) click reaction and used as polymer matrix of polymer dispersed liquid crystal (PDLC) film. For this purpose, aZnPc was prepared through statistical condensation of 4‐tert‐butylphthalonitrile and 4‐pent‐4‐ynyloxyphthalonitrile. Double CuAAC click reaction between azido‐functional poly(methyl methacrylate‐co‐2‐(2‐bromoisobutyryloxy)‐ethyl methacrylate), terminal alkynyl‐substituted aZnPc, and 4‐ethynyl‐N,N‐dimethyl aniline yielded photocurable aZnPc‐functional copolymer. Thereby, synthesized copolymer was crosslinked in the presence of liquid crystalline mesogen 4′‐(octyloxy)‐4‐biphenylcarbonitrile by ultraviolet irradiation using benzophenone as initiator and ethylene glycol dimethacrylate as difunctional crosslinker. Thermal and optical properties of PDLC film were investigated by using differential scanning calorimetry and polarized optical microscopy. Smectic A liquid crystal mesophases were observed in both PDLC film and its mesogenic component 4′‐(octyloxy)‐4‐biphenylcarbonitrile. © 2014 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015, 132, 41574.</description><subject>Aniline</subject><subject>Copolymers</subject><subject>Crosslinking</subject><subject>differential scanning calorimetry</subject><subject>dyes/pigments</subject><subject>functionalization of polymers</subject><subject>Liquid crystals</subject><subject>Materials science</subject><subject>Polymerization</subject><subject>Polymers</subject><subject>Polymethyl methacrylates</subject><subject>Ultraviolet</subject><subject>Zinc</subject><issn>0021-8995</issn><issn>1097-4628</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2015</creationdate><recordtype>article</recordtype><recordid>eNp10D9P3DAYBnALtRJXytBvYKkLHQJ2_CfJiIADKgQ3FLXqYjnO656pLzZ2Isi3b65HGSoxefDveWQ_CH2i5JgSUp7oGI85FRXfQwtKmqrgsqzfocV8R4u6acQ--pDzAyGUCiIXaFgliDrpwYUeB4s17uEJx-CnDaSiczlCytBh7x5H12GTpjxoj63zG9xOeMyu_4XjelhrH8yke9dDYcfebPtmF9dhCGZMuvWATXjp_YjeW-0zHL6cB-h-efHt7Kq4ubu8Pju9KQyTNS860gCpyfzQEljXcabrxgAVDTPcgpCt5pKWBGrdWmNtK0VTVlLwum25NB1jB-ho1xtTeBwhD2rjsgHvdQ9hzIpKQTmlhIuZfv6PPoQxzV_YKiYYEazks_qyUyaFnBNYFZPb6DQpStR2fzXvr_7uP9uTnX1yHqa3oTpdrf4lil3C5QGeXxM6_VayYpVQ328vFb9aLn9WX8_VD_YHhH6YSw</recordid><startdate>20150310</startdate><enddate>20150310</enddate><creator>Mert, Humeyra</creator><creator>Dinçer, Hatice</creator><creator>Çalışkan, Emel</creator><creator>Şen, Betül Nur</creator><creator>Gürsel, Yeşim Hepuzer</creator><general>Blackwell Publishing Ltd</general><general>Wiley Subscription Services, Inc</general><scope>BSCLL</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8FD</scope><scope>JG9</scope><scope>7SP</scope><scope>L7M</scope></search><sort><creationdate>20150310</creationdate><title>Preparation of a new polymer-dispersed liquid crystal film by using phthalocyanine-functional photocurable copolymer</title><author>Mert, Humeyra ; Dinçer, Hatice ; Çalışkan, Emel ; Şen, Betül Nur ; Gürsel, Yeşim Hepuzer</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c3684-d09e0801502e3dd43a89ce1593c4fe56ba46120e8abfcffb659276548bb46cd33</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2015</creationdate><topic>Aniline</topic><topic>Copolymers</topic><topic>Crosslinking</topic><topic>differential scanning calorimetry</topic><topic>dyes/pigments</topic><topic>functionalization of polymers</topic><topic>Liquid crystals</topic><topic>Materials science</topic><topic>Polymerization</topic><topic>Polymers</topic><topic>Polymethyl methacrylates</topic><topic>Ultraviolet</topic><topic>Zinc</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Mert, Humeyra</creatorcontrib><creatorcontrib>Dinçer, Hatice</creatorcontrib><creatorcontrib>Çalışkan, Emel</creatorcontrib><creatorcontrib>Şen, Betül Nur</creatorcontrib><creatorcontrib>Gürsel, Yeşim Hepuzer</creatorcontrib><collection>Istex</collection><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><collection>Electronics & Communications Abstracts</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Journal of applied polymer science</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Mert, Humeyra</au><au>Dinçer, Hatice</au><au>Çalışkan, Emel</au><au>Şen, Betül Nur</au><au>Gürsel, Yeşim Hepuzer</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Preparation of a new polymer-dispersed liquid crystal film by using phthalocyanine-functional photocurable copolymer</atitle><jtitle>Journal of applied polymer science</jtitle><addtitle>J. Appl. Polym. Sci</addtitle><date>2015-03-10</date><risdate>2015</risdate><volume>132</volume><issue>10</issue><spage>np</spage><epage>n/a</epage><pages>np-n/a</pages><issn>0021-8995</issn><eissn>1097-4628</eissn><coden>JAPNAB</coden><abstract>ABSTRACT
A new, asymmetrical zinc phthalocyanine (aZnPc)‐functional photocurable copolymer was prepared by the combination of atom transfer radical polymerization and copper (I)‐catalyzed azide‐alkyne cyclo‐addition (CuAAC) click reaction and used as polymer matrix of polymer dispersed liquid crystal (PDLC) film. For this purpose, aZnPc was prepared through statistical condensation of 4‐tert‐butylphthalonitrile and 4‐pent‐4‐ynyloxyphthalonitrile. Double CuAAC click reaction between azido‐functional poly(methyl methacrylate‐co‐2‐(2‐bromoisobutyryloxy)‐ethyl methacrylate), terminal alkynyl‐substituted aZnPc, and 4‐ethynyl‐N,N‐dimethyl aniline yielded photocurable aZnPc‐functional copolymer. Thereby, synthesized copolymer was crosslinked in the presence of liquid crystalline mesogen 4′‐(octyloxy)‐4‐biphenylcarbonitrile by ultraviolet irradiation using benzophenone as initiator and ethylene glycol dimethacrylate as difunctional crosslinker. Thermal and optical properties of PDLC film were investigated by using differential scanning calorimetry and polarized optical microscopy. Smectic A liquid crystal mesophases were observed in both PDLC film and its mesogenic component 4′‐(octyloxy)‐4‐biphenylcarbonitrile. © 2014 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015, 132, 41574.</abstract><cop>Hoboken</cop><pub>Blackwell Publishing Ltd</pub><doi>10.1002/app.41574</doi><tpages>8</tpages></addata></record> |
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| subjects | Aniline Copolymers Crosslinking differential scanning calorimetry dyes/pigments functionalization of polymers Liquid crystals Materials science Polymerization Polymers Polymethyl methacrylates Ultraviolet Zinc |
| title | Preparation of a new polymer-dispersed liquid crystal film by using phthalocyanine-functional photocurable copolymer |
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