What will happen when thermoresponsive poly(-isopropylacrylamide) is tethered on poly(ionic liquid)s?
The thermoresponsive ionic liquid diblock copolymer of poly[1-(4-vinylbenzyl)-3-methylimidazolium tetrafluoroborate]- block -poly( N -isopropylacrylamide) (P[VBMI][BF 4 ]- b -PNIPAM) containing a hydrophilic poly(ionic liquid) block of P[VBMI][BF 4 ] is prepared by sequential reversible addition-fra...
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| Veröffentlicht in: | RSC advances 2019-04, Vol.9 (23), p.12936-12943 |
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| container_issue | 23 |
| container_start_page | 12936 |
| container_title | RSC advances |
| container_volume | 9 |
| creator | Luo, Guangmei Guo, Yakun Liu, Chonggao Han, Guang Ma, Xiaodong Zhang, Wangqing |
| description | The thermoresponsive ionic liquid diblock copolymer of poly[1-(4-vinylbenzyl)-3-methylimidazolium tetrafluoroborate]-
block
-poly(
N
-isopropylacrylamide) (P[VBMI][BF
4
]-
b
-PNIPAM) containing a hydrophilic poly(ionic liquid) block of P[VBMI][BF
4
] is prepared by sequential reversible addition-fragmentation chain transfer (RAFT) polymerization. This P[VBMI][BF
4
]-
b
-PNIPAM exhibits an abnormal thermoresponsive phase transition at a temperature above the phase transition temperature (PTT) of the PNIPAM block. For P[VBMI][BF
4
]-
b
-PNIPAM including a short P[VBMI][BF
4
] block, its aqueous solution becomes turbid at a temperature above the PTT of the thermoresponsive PNIPAM block, whereas for P[VBMI][BF
4
]-
b
-PNIPAM containing a relatively long P[VBMI][BF
4
] block even in the case of a relatively long PNIPAM block, the aqueous solution remains transparent at a temperature far above the PTT of the PNIPAM block, although a soluble-to-insoluble phase transition of the PINIPAM block is confirmed by dynamic light scattering (DLS) analysis and variable temperature
1
H NMR analysis. The reason that P[VBMI][BF
4
]-
b
-PNIPAM exhibits an abnormal thermoresponse is discussed and ascribed to the highly hydrophilic and charged poly(ionic liquid) block of P[VBMI][BF
4
] leading to the formation of small-sized micelles at a temperature above the PTT.
A thermoresponsive ionic liquid diblock copolymer shows abnormal thermoresponse, and its aqueous solution remains transparent at the phase transition temperature. |
| doi_str_mv | 10.1039/c9ra01849b |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_pubme</sourceid><recordid>TN_cdi_pubmed_primary_35520761</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>2661080746</sourcerecordid><originalsourceid>FETCH-LOGICAL-c428t-8da1de9ff4ca19194284ca40a6e31ec92dc4d5033d05731552322f53893605713</originalsourceid><addsrcrecordid>eNpdkt9LHDEQx0Op1OPqi-8tC76cwmp-7OY2Ly3XQ6sgCKL4GGIy282R3azJrnL_faOnV20eJsPMZ4aZfIPQPsHHBDNxokVQmFSFuP-EJhQXPKeYi8_v_F20F-MKp8NLQjn5gnZZWVI852SC4K5RQ_Zkncsa1ffQZU9NMkMDofUBYu-7aB8h671bz3IbfR98v3ZKh2Raa-AwszEb4LkATOa7DWl9Z3Xm7MNozWH8-RXt1MpF2Hu9p-j27PRmeZ5fXv2-WC4uc13Qasgro4gBUdeFVkQQkYLJK7DiwAhoQY0uTIkZM7icM5KWYJTWJasE4ylC2BT92PTtx_sWjIZuCMrJPthWhbX0ysqPmc428o9_lAJzVqX3nKLZa4PgH0aIg2xt1OCc6sCPUVLOCa7wvOAJPfgPXfkxdGk9SSnhcyEKUibqaEPp4GMMUG-HIVg-CyiX4nrxIuCvBH9_P_4WfZMrAd82QIh6m_33A9hfAWOgaQ</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>2216799415</pqid></control><display><type>article</type><title>What will happen when thermoresponsive poly(-isopropylacrylamide) is tethered on poly(ionic liquid)s?</title><source>DOAJ Directory of Open Access Journals</source><source>Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals</source><source>PubMed Central Open Access</source><source>PubMed Central</source><creator>Luo, Guangmei ; Guo, Yakun ; Liu, Chonggao ; Han, Guang ; Ma, Xiaodong ; Zhang, Wangqing</creator><creatorcontrib>Luo, Guangmei ; Guo, Yakun ; Liu, Chonggao ; Han, Guang ; Ma, Xiaodong ; Zhang, Wangqing</creatorcontrib><description>The thermoresponsive ionic liquid diblock copolymer of poly[1-(4-vinylbenzyl)-3-methylimidazolium tetrafluoroborate]-
block
-poly(
N
-isopropylacrylamide) (P[VBMI][BF
4
]-
b
-PNIPAM) containing a hydrophilic poly(ionic liquid) block of P[VBMI][BF
4
] is prepared by sequential reversible addition-fragmentation chain transfer (RAFT) polymerization. This P[VBMI][BF
4
]-
b
-PNIPAM exhibits an abnormal thermoresponsive phase transition at a temperature above the phase transition temperature (PTT) of the PNIPAM block. For P[VBMI][BF
4
]-
b
-PNIPAM including a short P[VBMI][BF
4
] block, its aqueous solution becomes turbid at a temperature above the PTT of the thermoresponsive PNIPAM block, whereas for P[VBMI][BF
4
]-
b
-PNIPAM containing a relatively long P[VBMI][BF
4
] block even in the case of a relatively long PNIPAM block, the aqueous solution remains transparent at a temperature far above the PTT of the PNIPAM block, although a soluble-to-insoluble phase transition of the PINIPAM block is confirmed by dynamic light scattering (DLS) analysis and variable temperature
1
H NMR analysis. The reason that P[VBMI][BF
4
]-
b
-PNIPAM exhibits an abnormal thermoresponse is discussed and ascribed to the highly hydrophilic and charged poly(ionic liquid) block of P[VBMI][BF
4
] leading to the formation of small-sized micelles at a temperature above the PTT.
A thermoresponsive ionic liquid diblock copolymer shows abnormal thermoresponse, and its aqueous solution remains transparent at the phase transition temperature.</description><identifier>ISSN: 2046-2069</identifier><identifier>EISSN: 2046-2069</identifier><identifier>DOI: 10.1039/c9ra01849b</identifier><identifier>PMID: 35520761</identifier><language>eng</language><publisher>England: Royal Society of Chemistry</publisher><subject>Addition polymerization ; Aqueous solutions ; Block copolymers ; Chain transfer ; Chemistry ; Hydrophilicity ; Ionic liquids ; Ions ; Isopropylacrylamide ; Micelles ; NMR ; Nuclear magnetic resonance ; Phase transitions ; Photon correlation spectroscopy ; Solvents ; Transition temperature</subject><ispartof>RSC advances, 2019-04, Vol.9 (23), p.12936-12943</ispartof><rights>This journal is © The Royal Society of Chemistry.</rights><rights>Copyright Royal Society of Chemistry 2019</rights><rights>This journal is © The Royal Society of Chemistry 2019 The Royal Society of Chemistry</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c428t-8da1de9ff4ca19194284ca40a6e31ec92dc4d5033d05731552322f53893605713</citedby><cites>FETCH-LOGICAL-c428t-8da1de9ff4ca19194284ca40a6e31ec92dc4d5033d05731552322f53893605713</cites><orcidid>0000-0003-2005-6856</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC9063810/pdf/$$EPDF$$P50$$Gpubmedcentral$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC9063810/$$EHTML$$P50$$Gpubmedcentral$$Hfree_for_read</linktohtml><link.rule.ids>230,314,723,776,780,860,881,27903,27904,53769,53771</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/35520761$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Luo, Guangmei</creatorcontrib><creatorcontrib>Guo, Yakun</creatorcontrib><creatorcontrib>Liu, Chonggao</creatorcontrib><creatorcontrib>Han, Guang</creatorcontrib><creatorcontrib>Ma, Xiaodong</creatorcontrib><creatorcontrib>Zhang, Wangqing</creatorcontrib><title>What will happen when thermoresponsive poly(-isopropylacrylamide) is tethered on poly(ionic liquid)s?</title><title>RSC advances</title><addtitle>RSC Adv</addtitle><description>The thermoresponsive ionic liquid diblock copolymer of poly[1-(4-vinylbenzyl)-3-methylimidazolium tetrafluoroborate]-
block
-poly(
N
-isopropylacrylamide) (P[VBMI][BF
4
]-
b
-PNIPAM) containing a hydrophilic poly(ionic liquid) block of P[VBMI][BF
4
] is prepared by sequential reversible addition-fragmentation chain transfer (RAFT) polymerization. This P[VBMI][BF
4
]-
b
-PNIPAM exhibits an abnormal thermoresponsive phase transition at a temperature above the phase transition temperature (PTT) of the PNIPAM block. For P[VBMI][BF
4
]-
b
-PNIPAM including a short P[VBMI][BF
4
] block, its aqueous solution becomes turbid at a temperature above the PTT of the thermoresponsive PNIPAM block, whereas for P[VBMI][BF
4
]-
b
-PNIPAM containing a relatively long P[VBMI][BF
4
] block even in the case of a relatively long PNIPAM block, the aqueous solution remains transparent at a temperature far above the PTT of the PNIPAM block, although a soluble-to-insoluble phase transition of the PINIPAM block is confirmed by dynamic light scattering (DLS) analysis and variable temperature
1
H NMR analysis. The reason that P[VBMI][BF
4
]-
b
-PNIPAM exhibits an abnormal thermoresponse is discussed and ascribed to the highly hydrophilic and charged poly(ionic liquid) block of P[VBMI][BF
4
] leading to the formation of small-sized micelles at a temperature above the PTT.
A thermoresponsive ionic liquid diblock copolymer shows abnormal thermoresponse, and its aqueous solution remains transparent at the phase transition temperature.</description><subject>Addition polymerization</subject><subject>Aqueous solutions</subject><subject>Block copolymers</subject><subject>Chain transfer</subject><subject>Chemistry</subject><subject>Hydrophilicity</subject><subject>Ionic liquids</subject><subject>Ions</subject><subject>Isopropylacrylamide</subject><subject>Micelles</subject><subject>NMR</subject><subject>Nuclear magnetic resonance</subject><subject>Phase transitions</subject><subject>Photon correlation spectroscopy</subject><subject>Solvents</subject><subject>Transition temperature</subject><issn>2046-2069</issn><issn>2046-2069</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2019</creationdate><recordtype>article</recordtype><recordid>eNpdkt9LHDEQx0Op1OPqi-8tC76cwmp-7OY2Ly3XQ6sgCKL4GGIy282R3azJrnL_faOnV20eJsPMZ4aZfIPQPsHHBDNxokVQmFSFuP-EJhQXPKeYi8_v_F20F-MKp8NLQjn5gnZZWVI852SC4K5RQ_Zkncsa1ffQZU9NMkMDofUBYu-7aB8h671bz3IbfR98v3ZKh2Raa-AwszEb4LkATOa7DWl9Z3Xm7MNozWH8-RXt1MpF2Hu9p-j27PRmeZ5fXv2-WC4uc13Qasgro4gBUdeFVkQQkYLJK7DiwAhoQY0uTIkZM7icM5KWYJTWJasE4ylC2BT92PTtx_sWjIZuCMrJPthWhbX0ysqPmc428o9_lAJzVqX3nKLZa4PgH0aIg2xt1OCc6sCPUVLOCa7wvOAJPfgPXfkxdGk9SSnhcyEKUibqaEPp4GMMUG-HIVg-CyiX4nrxIuCvBH9_P_4WfZMrAd82QIh6m_33A9hfAWOgaQ</recordid><startdate>20190426</startdate><enddate>20190426</enddate><creator>Luo, Guangmei</creator><creator>Guo, Yakun</creator><creator>Liu, Chonggao</creator><creator>Han, Guang</creator><creator>Ma, Xiaodong</creator><creator>Zhang, Wangqing</creator><general>Royal Society of Chemistry</general><general>The Royal Society of Chemistry</general><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope><scope>7X8</scope><scope>5PM</scope><orcidid>https://orcid.org/0000-0003-2005-6856</orcidid></search><sort><creationdate>20190426</creationdate><title>What will happen when thermoresponsive poly(-isopropylacrylamide) is tethered on poly(ionic liquid)s?</title><author>Luo, Guangmei ; Guo, Yakun ; Liu, Chonggao ; Han, Guang ; Ma, Xiaodong ; Zhang, Wangqing</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c428t-8da1de9ff4ca19194284ca40a6e31ec92dc4d5033d05731552322f53893605713</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2019</creationdate><topic>Addition polymerization</topic><topic>Aqueous solutions</topic><topic>Block copolymers</topic><topic>Chain transfer</topic><topic>Chemistry</topic><topic>Hydrophilicity</topic><topic>Ionic liquids</topic><topic>Ions</topic><topic>Isopropylacrylamide</topic><topic>Micelles</topic><topic>NMR</topic><topic>Nuclear magnetic resonance</topic><topic>Phase transitions</topic><topic>Photon correlation spectroscopy</topic><topic>Solvents</topic><topic>Transition temperature</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Luo, Guangmei</creatorcontrib><creatorcontrib>Guo, Yakun</creatorcontrib><creatorcontrib>Liu, Chonggao</creatorcontrib><creatorcontrib>Han, Guang</creatorcontrib><creatorcontrib>Ma, Xiaodong</creatorcontrib><creatorcontrib>Zhang, Wangqing</creatorcontrib><collection>PubMed</collection><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><collection>MEDLINE - Academic</collection><collection>PubMed Central (Full Participant titles)</collection><jtitle>RSC advances</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Luo, Guangmei</au><au>Guo, Yakun</au><au>Liu, Chonggao</au><au>Han, Guang</au><au>Ma, Xiaodong</au><au>Zhang, Wangqing</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>What will happen when thermoresponsive poly(-isopropylacrylamide) is tethered on poly(ionic liquid)s?</atitle><jtitle>RSC advances</jtitle><addtitle>RSC Adv</addtitle><date>2019-04-26</date><risdate>2019</risdate><volume>9</volume><issue>23</issue><spage>12936</spage><epage>12943</epage><pages>12936-12943</pages><issn>2046-2069</issn><eissn>2046-2069</eissn><abstract>The thermoresponsive ionic liquid diblock copolymer of poly[1-(4-vinylbenzyl)-3-methylimidazolium tetrafluoroborate]-
block
-poly(
N
-isopropylacrylamide) (P[VBMI][BF
4
]-
b
-PNIPAM) containing a hydrophilic poly(ionic liquid) block of P[VBMI][BF
4
] is prepared by sequential reversible addition-fragmentation chain transfer (RAFT) polymerization. This P[VBMI][BF
4
]-
b
-PNIPAM exhibits an abnormal thermoresponsive phase transition at a temperature above the phase transition temperature (PTT) of the PNIPAM block. For P[VBMI][BF
4
]-
b
-PNIPAM including a short P[VBMI][BF
4
] block, its aqueous solution becomes turbid at a temperature above the PTT of the thermoresponsive PNIPAM block, whereas for P[VBMI][BF
4
]-
b
-PNIPAM containing a relatively long P[VBMI][BF
4
] block even in the case of a relatively long PNIPAM block, the aqueous solution remains transparent at a temperature far above the PTT of the PNIPAM block, although a soluble-to-insoluble phase transition of the PINIPAM block is confirmed by dynamic light scattering (DLS) analysis and variable temperature
1
H NMR analysis. The reason that P[VBMI][BF
4
]-
b
-PNIPAM exhibits an abnormal thermoresponse is discussed and ascribed to the highly hydrophilic and charged poly(ionic liquid) block of P[VBMI][BF
4
] leading to the formation of small-sized micelles at a temperature above the PTT.
A thermoresponsive ionic liquid diblock copolymer shows abnormal thermoresponse, and its aqueous solution remains transparent at the phase transition temperature.</abstract><cop>England</cop><pub>Royal Society of Chemistry</pub><pmid>35520761</pmid><doi>10.1039/c9ra01849b</doi><tpages>8</tpages><orcidid>https://orcid.org/0000-0003-2005-6856</orcidid><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 2046-2069 |
| ispartof | RSC advances, 2019-04, Vol.9 (23), p.12936-12943 |
| issn | 2046-2069 2046-2069 |
| language | eng |
| recordid | cdi_pubmed_primary_35520761 |
| source | DOAJ Directory of Open Access Journals; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; PubMed Central Open Access; PubMed Central |
| subjects | Addition polymerization Aqueous solutions Block copolymers Chain transfer Chemistry Hydrophilicity Ionic liquids Ions Isopropylacrylamide Micelles NMR Nuclear magnetic resonance Phase transitions Photon correlation spectroscopy Solvents Transition temperature |
| title | What will happen when thermoresponsive poly(-isopropylacrylamide) is tethered on poly(ionic liquid)s? |
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