Photochromic fluorescence switching in liquid crystalline polynorbornenes with α-cyanostilbene side-chains
Photoresponsive materials have been drawing much attention due to their fast switching properties and non-contact and non-destructive features. In this paper, we report a photoinduced reversible fluorescence switching based on the α-cyanostilbene containing liquid crystalline polynorbornenes. Z - an...
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| Veröffentlicht in: | Journal of materials chemistry. C, Materials for optical and electronic devices Materials for optical and electronic devices, 2020-05, Vol.8 (19), p.6461-6469 |
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| container_issue | 19 |
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| container_title | Journal of materials chemistry. C, Materials for optical and electronic devices |
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| creator | Wu, Yijin Zhang, Shasha Pei, Jiwei Chen, Xiao-Fang |
| description | Photoresponsive materials have been drawing much attention due to their fast switching properties and non-contact and non-destructive features. In this paper, we report a photoinduced reversible fluorescence switching based on the α-cyanostilbene containing liquid crystalline polynorbornenes.
Z
- and
E
-stereoisomers of α-cyanostilbene monomers with different flexible alkoxy tails and their corresponding
Z
- and
E
-polymers were synthesized and characterized for the first time. P-(
Z
)-345 with three alkoxy tails exhibits a hexagonal columnar structure. P-(
Z
)-4, P-(
Z
)-34, and P-(
Z
)-35 with one or two alkoxy tails possess a lamellar structure. The substitution position and number of alkoxy tails also influence the photoluminescence behaviours, giving rise to different fluorescence colours in bulk. Both monomers and polymers show photoinduced
E
/
Z
isomerization in solution. Under the UV light of 365 nm and 254 nm, polymer thin films or monomer thin films at the noncrystalline state could change their fluorescence colours accordingly, which is mainly due to the photoinduced reversible
E
/
Z
isomerization and [2+2] dimerization in film.
Photoinduced fluorescence colour change based on
Z
/
E
isomerization and [2+2] dimerization in cyanostilbene liquid crystalline polymers. |
| doi_str_mv | 10.1039/d0tc00069h |
| format | Article |
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Z
- and
E
-stereoisomers of α-cyanostilbene monomers with different flexible alkoxy tails and their corresponding
Z
- and
E
-polymers were synthesized and characterized for the first time. P-(
Z
)-345 with three alkoxy tails exhibits a hexagonal columnar structure. P-(
Z
)-4, P-(
Z
)-34, and P-(
Z
)-35 with one or two alkoxy tails possess a lamellar structure. The substitution position and number of alkoxy tails also influence the photoluminescence behaviours, giving rise to different fluorescence colours in bulk. Both monomers and polymers show photoinduced
E
/
Z
isomerization in solution. Under the UV light of 365 nm and 254 nm, polymer thin films or monomer thin films at the noncrystalline state could change their fluorescence colours accordingly, which is mainly due to the photoinduced reversible
E
/
Z
isomerization and [2+2] dimerization in film.
Photoinduced fluorescence colour change based on
Z
/
E
isomerization and [2+2] dimerization in cyanostilbene liquid crystalline polymers.</description><identifier>ISSN: 2050-7526</identifier><identifier>EISSN: 2050-7534</identifier><identifier>DOI: 10.1039/d0tc00069h</identifier><language>eng</language><publisher>Cambridge: Royal Society of Chemistry</publisher><subject>Columnar structure ; Crystal structure ; Crystallinity ; Dimerization ; Fluorescence ; Isomerization ; Lamellar structure ; Liquid crystals ; Monomers ; NMR ; Nuclear magnetic resonance ; Photoluminescence ; Pictures ; Polymer films ; Polymers ; Polynorbornene ; Switching ; Thin films ; Ultraviolet radiation</subject><ispartof>Journal of materials chemistry. C, Materials for optical and electronic devices, 2020-05, Vol.8 (19), p.6461-6469</ispartof><rights>Copyright Royal Society of Chemistry 2020</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c307t-c16fbf5d200608db3ba532596bdf2842d20c2748d1670be9e6ab5a12018a2a9c3</citedby><cites>FETCH-LOGICAL-c307t-c16fbf5d200608db3ba532596bdf2842d20c2748d1670be9e6ab5a12018a2a9c3</cites><orcidid>0000-0002-2973-0432</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27923,27924</link.rule.ids></links><search><creatorcontrib>Wu, Yijin</creatorcontrib><creatorcontrib>Zhang, Shasha</creatorcontrib><creatorcontrib>Pei, Jiwei</creatorcontrib><creatorcontrib>Chen, Xiao-Fang</creatorcontrib><title>Photochromic fluorescence switching in liquid crystalline polynorbornenes with α-cyanostilbene side-chains</title><title>Journal of materials chemistry. C, Materials for optical and electronic devices</title><description>Photoresponsive materials have been drawing much attention due to their fast switching properties and non-contact and non-destructive features. In this paper, we report a photoinduced reversible fluorescence switching based on the α-cyanostilbene containing liquid crystalline polynorbornenes.
Z
- and
E
-stereoisomers of α-cyanostilbene monomers with different flexible alkoxy tails and their corresponding
Z
- and
E
-polymers were synthesized and characterized for the first time. P-(
Z
)-345 with three alkoxy tails exhibits a hexagonal columnar structure. P-(
Z
)-4, P-(
Z
)-34, and P-(
Z
)-35 with one or two alkoxy tails possess a lamellar structure. The substitution position and number of alkoxy tails also influence the photoluminescence behaviours, giving rise to different fluorescence colours in bulk. Both monomers and polymers show photoinduced
E
/
Z
isomerization in solution. Under the UV light of 365 nm and 254 nm, polymer thin films or monomer thin films at the noncrystalline state could change their fluorescence colours accordingly, which is mainly due to the photoinduced reversible
E
/
Z
isomerization and [2+2] dimerization in film.
Photoinduced fluorescence colour change based on
Z
/
E
isomerization and [2+2] dimerization in cyanostilbene liquid crystalline polymers.</description><subject>Columnar structure</subject><subject>Crystal structure</subject><subject>Crystallinity</subject><subject>Dimerization</subject><subject>Fluorescence</subject><subject>Isomerization</subject><subject>Lamellar structure</subject><subject>Liquid crystals</subject><subject>Monomers</subject><subject>NMR</subject><subject>Nuclear magnetic resonance</subject><subject>Photoluminescence</subject><subject>Pictures</subject><subject>Polymer films</subject><subject>Polymers</subject><subject>Polynorbornene</subject><subject>Switching</subject><subject>Thin films</subject><subject>Ultraviolet radiation</subject><issn>2050-7526</issn><issn>2050-7534</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><recordid>eNp9kMtKw0AUhgdRsNRu3Asj7oToXJJJspR6qVDQRV2HucVMTWfSmQTJY_kiPpOjlbpzdQ7n_ziH8wFwitEVRrS8VqiXCCFWNgdgQlCGkjyj6eG-J-wYzEJYRwYVmBWsnIC358b1TjbebYyEdTs4r4PUVmoY3k0vG2NfobGwNdvBKCj9GHretsZq2Ll2tM4L5622OsCIN_DzI5Ejty70phVxDINROpENNzacgKOat0HPfusUvNzfreaLZPn08Di_WSaSorxPJGa1qDNF4iuoUIIKnlGSlUyomhQpiYEkeVoozHIkdKkZFxnHBOGCE15KOgUXu72dd9tBh75au8HbeLIiKcpwShljkbrcUdK7ELyuq86bDfdjhVH17bO6Rav5j89FhM92sA9yz_35jvn5f3nVqZp-ARPFgEY</recordid><startdate>20200521</startdate><enddate>20200521</enddate><creator>Wu, Yijin</creator><creator>Zhang, Shasha</creator><creator>Pei, Jiwei</creator><creator>Chen, Xiao-Fang</creator><general>Royal Society of Chemistry</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SP</scope><scope>7U5</scope><scope>8FD</scope><scope>L7M</scope><orcidid>https://orcid.org/0000-0002-2973-0432</orcidid></search><sort><creationdate>20200521</creationdate><title>Photochromic fluorescence switching in liquid crystalline polynorbornenes with α-cyanostilbene side-chains</title><author>Wu, Yijin ; Zhang, Shasha ; Pei, Jiwei ; Chen, Xiao-Fang</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c307t-c16fbf5d200608db3ba532596bdf2842d20c2748d1670be9e6ab5a12018a2a9c3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2020</creationdate><topic>Columnar structure</topic><topic>Crystal structure</topic><topic>Crystallinity</topic><topic>Dimerization</topic><topic>Fluorescence</topic><topic>Isomerization</topic><topic>Lamellar structure</topic><topic>Liquid crystals</topic><topic>Monomers</topic><topic>NMR</topic><topic>Nuclear magnetic resonance</topic><topic>Photoluminescence</topic><topic>Pictures</topic><topic>Polymer films</topic><topic>Polymers</topic><topic>Polynorbornene</topic><topic>Switching</topic><topic>Thin films</topic><topic>Ultraviolet radiation</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Wu, Yijin</creatorcontrib><creatorcontrib>Zhang, Shasha</creatorcontrib><creatorcontrib>Pei, Jiwei</creatorcontrib><creatorcontrib>Chen, Xiao-Fang</creatorcontrib><collection>CrossRef</collection><collection>Electronics & Communications Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Journal of materials chemistry. C, Materials for optical and electronic devices</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Wu, Yijin</au><au>Zhang, Shasha</au><au>Pei, Jiwei</au><au>Chen, Xiao-Fang</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Photochromic fluorescence switching in liquid crystalline polynorbornenes with α-cyanostilbene side-chains</atitle><jtitle>Journal of materials chemistry. C, Materials for optical and electronic devices</jtitle><date>2020-05-21</date><risdate>2020</risdate><volume>8</volume><issue>19</issue><spage>6461</spage><epage>6469</epage><pages>6461-6469</pages><issn>2050-7526</issn><eissn>2050-7534</eissn><abstract>Photoresponsive materials have been drawing much attention due to their fast switching properties and non-contact and non-destructive features. In this paper, we report a photoinduced reversible fluorescence switching based on the α-cyanostilbene containing liquid crystalline polynorbornenes.
Z
- and
E
-stereoisomers of α-cyanostilbene monomers with different flexible alkoxy tails and their corresponding
Z
- and
E
-polymers were synthesized and characterized for the first time. P-(
Z
)-345 with three alkoxy tails exhibits a hexagonal columnar structure. P-(
Z
)-4, P-(
Z
)-34, and P-(
Z
)-35 with one or two alkoxy tails possess a lamellar structure. The substitution position and number of alkoxy tails also influence the photoluminescence behaviours, giving rise to different fluorescence colours in bulk. Both monomers and polymers show photoinduced
E
/
Z
isomerization in solution. Under the UV light of 365 nm and 254 nm, polymer thin films or monomer thin films at the noncrystalline state could change their fluorescence colours accordingly, which is mainly due to the photoinduced reversible
E
/
Z
isomerization and [2+2] dimerization in film.
Photoinduced fluorescence colour change based on
Z
/
E
isomerization and [2+2] dimerization in cyanostilbene liquid crystalline polymers.</abstract><cop>Cambridge</cop><pub>Royal Society of Chemistry</pub><doi>10.1039/d0tc00069h</doi><tpages>9</tpages><orcidid>https://orcid.org/0000-0002-2973-0432</orcidid></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 2050-7526 |
| ispartof | Journal of materials chemistry. C, Materials for optical and electronic devices, 2020-05, Vol.8 (19), p.6461-6469 |
| issn | 2050-7526 2050-7534 |
| language | eng |
| recordid | cdi_crossref_primary_10_1039_D0TC00069H |
| source | Royal Society Of Chemistry Journals 2008- |
| subjects | Columnar structure Crystal structure Crystallinity Dimerization Fluorescence Isomerization Lamellar structure Liquid crystals Monomers NMR Nuclear magnetic resonance Photoluminescence Pictures Polymer films Polymers Polynorbornene Switching Thin films Ultraviolet radiation |
| title | Photochromic fluorescence switching in liquid crystalline polynorbornenes with α-cyanostilbene side-chains |
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