Thermoresponsive behaviour of terpolymers containing poly(ethylene oxide), poly(2-ethyl-2-oxazoline) and poly(ε-caprolactone) blocks in aqueous solutions: an NMR study
1 H NMR spectroscopy was used for the first time to investigate temperature behaviour of aqueous solutions of nanoparticles (NPs) prepared from linear and Y-shape terpolymers containing blocks of poly(ethylene oxide) (PEO), poly(2-ethyl-2-oxazoline) (PEtOx) and one linear or two star poly(ε-caprolac...
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| Veröffentlicht in: | Colloid and polymer science 2016-11, Vol.294 (11), p.1717-1726 |
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| container_title | Colloid and polymer science |
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| creator | Konefał, Rafał Spěváček, Jiří Jäger, Eliezer Petrova, Svetlana |
| description | 1
H NMR spectroscopy was used for the first time to investigate temperature behaviour of aqueous solutions of nanoparticles (NPs) prepared from linear and Y-shape terpolymers containing blocks of poly(ethylene oxide) (PEO), poly(2-ethyl-2-oxazoline) (PEtOx) and one linear or two star poly(ε-caprolactone) (PCL) blocks with different length. Structural changes were characterized separately for all blocks in a temperature range 295–360 K, and a broad transition was observed at temperatures above ~320 K. The temperature behaviour of NPs solutions depends on polymer concentration and especially on terpolymer architecture. At the same time, NMR measurements revealed important role of PCL blocks in this behaviour. The spin-spin relaxation times
T
2
of water (HDO) give information on the behaviour of water and on polymer-water interactions within the aforementioned temperature range. In NPs solutions of the linear copolymer, two types of water were detected at higher temperatures: “free” and “bound” water molecules with long and very short
T
2
values, respectively. For NPs solution of non-linear terpolymer, two types of water were observed only for the highest used (1.5 wt%) polymer concentration. |
| doi_str_mv | 10.1007/s00396-016-3930-7 |
| format | Article |
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H NMR spectroscopy was used for the first time to investigate temperature behaviour of aqueous solutions of nanoparticles (NPs) prepared from linear and Y-shape terpolymers containing blocks of poly(ethylene oxide) (PEO), poly(2-ethyl-2-oxazoline) (PEtOx) and one linear or two star poly(ε-caprolactone) (PCL) blocks with different length. Structural changes were characterized separately for all blocks in a temperature range 295–360 K, and a broad transition was observed at temperatures above ~320 K. The temperature behaviour of NPs solutions depends on polymer concentration and especially on terpolymer architecture. At the same time, NMR measurements revealed important role of PCL blocks in this behaviour. The spin-spin relaxation times
T
2
of water (HDO) give information on the behaviour of water and on polymer-water interactions within the aforementioned temperature range. In NPs solutions of the linear copolymer, two types of water were detected at higher temperatures: “free” and “bound” water molecules with long and very short
T
2
values, respectively. For NPs solution of non-linear terpolymer, two types of water were observed only for the highest used (1.5 wt%) polymer concentration.</description><identifier>ISSN: 0303-402X</identifier><identifier>EISSN: 1435-1536</identifier><identifier>DOI: 10.1007/s00396-016-3930-7</identifier><language>eng</language><publisher>Berlin/Heidelberg: Springer Berlin Heidelberg</publisher><subject>Aqueous solutions ; Behavior ; Characterization and Evaluation of Materials ; Chemistry ; Chemistry and Materials Science ; Complex Fluids and Microfluidics ; Copolymers ; Food Science ; Nanoparticles ; Nanotechnology and Microengineering ; NMR spectroscopy ; Nuclear magnetic resonance ; Original Contribution ; Oxides ; Physical Chemistry ; Polymer Sciences ; Soft and Granular Matter ; Terpolymers</subject><ispartof>Colloid and polymer science, 2016-11, Vol.294 (11), p.1717-1726</ispartof><rights>Springer-Verlag Berlin Heidelberg 2016</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c349t-1bdaff31506a36959860349ee55e994292e95d29da35c698292cc4f893cdae523</citedby><cites>FETCH-LOGICAL-c349t-1bdaff31506a36959860349ee55e994292e95d29da35c698292cc4f893cdae523</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s00396-016-3930-7$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s00396-016-3930-7$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,776,780,27901,27902,41464,42533,51294</link.rule.ids></links><search><creatorcontrib>Konefał, Rafał</creatorcontrib><creatorcontrib>Spěváček, Jiří</creatorcontrib><creatorcontrib>Jäger, Eliezer</creatorcontrib><creatorcontrib>Petrova, Svetlana</creatorcontrib><title>Thermoresponsive behaviour of terpolymers containing poly(ethylene oxide), poly(2-ethyl-2-oxazoline) and poly(ε-caprolactone) blocks in aqueous solutions: an NMR study</title><title>Colloid and polymer science</title><addtitle>Colloid Polym Sci</addtitle><description>1
H NMR spectroscopy was used for the first time to investigate temperature behaviour of aqueous solutions of nanoparticles (NPs) prepared from linear and Y-shape terpolymers containing blocks of poly(ethylene oxide) (PEO), poly(2-ethyl-2-oxazoline) (PEtOx) and one linear or two star poly(ε-caprolactone) (PCL) blocks with different length. Structural changes were characterized separately for all blocks in a temperature range 295–360 K, and a broad transition was observed at temperatures above ~320 K. The temperature behaviour of NPs solutions depends on polymer concentration and especially on terpolymer architecture. At the same time, NMR measurements revealed important role of PCL blocks in this behaviour. The spin-spin relaxation times
T
2
of water (HDO) give information on the behaviour of water and on polymer-water interactions within the aforementioned temperature range. In NPs solutions of the linear copolymer, two types of water were detected at higher temperatures: “free” and “bound” water molecules with long and very short
T
2
values, respectively. For NPs solution of non-linear terpolymer, two types of water were observed only for the highest used (1.5 wt%) polymer concentration.</description><subject>Aqueous solutions</subject><subject>Behavior</subject><subject>Characterization and Evaluation of Materials</subject><subject>Chemistry</subject><subject>Chemistry and Materials Science</subject><subject>Complex Fluids and Microfluidics</subject><subject>Copolymers</subject><subject>Food Science</subject><subject>Nanoparticles</subject><subject>Nanotechnology and Microengineering</subject><subject>NMR spectroscopy</subject><subject>Nuclear magnetic resonance</subject><subject>Original Contribution</subject><subject>Oxides</subject><subject>Physical Chemistry</subject><subject>Polymer Sciences</subject><subject>Soft and Granular Matter</subject><subject>Terpolymers</subject><issn>0303-402X</issn><issn>1435-1536</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2016</creationdate><recordtype>article</recordtype><sourceid>BENPR</sourceid><recordid>eNp1kd9qFDEYxUNRcK0-gHeB3rTQaP5MspPeSWltoSpIBe9CNvNNN202WZOZ0vWJfAFfw2cy0-mFCF4Fzvc7h0MOQm8YfcsoXb4rlAqtCGWKCC0oWe6hBWuEJEwK9QwtqKCCNJR_e4FelnJLKW20Ugv083oNeZMylG2Kxd8DXsHa3vs0Zpx6PEDeprDbQC7YpThYH328wZN2CMN6FyACTg--g6PjWeXkUSecpAf7IwUf4Qjb2M3X37-Is9ucgnVDmi6rkNxdwT5i-32ENBZcUhgHX8ucVBv-9PELLsPY7V6h570NBV4_vfvo6_nZ9ekFufr84fL0_RVxotEDYavO9r1gkiorlJa6VbQeAKQErRuuOWjZcd1ZIZ3SbRWca_pWC9dZkFzso8M5t7asjcpgNr44CMHGqZ5hbSOXNZerih78g97Wb4u1XaV4yxvG6ESxmXI5lZKhN9vsNzbvDKNm2s7M25m6nZm2M8vq4bOnVDbeQP4r-b-mP3Gln5Q</recordid><startdate>20161101</startdate><enddate>20161101</enddate><creator>Konefał, Rafał</creator><creator>Spěváček, Jiří</creator><creator>Jäger, Eliezer</creator><creator>Petrova, Svetlana</creator><general>Springer Berlin Heidelberg</general><general>Springer Nature B.V</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8FD</scope><scope>8FE</scope><scope>8FG</scope><scope>ABJCF</scope><scope>AFKRA</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>CCPQU</scope><scope>D1I</scope><scope>DWQXO</scope><scope>HCIFZ</scope><scope>JG9</scope><scope>KB.</scope><scope>PDBOC</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope></search><sort><creationdate>20161101</creationdate><title>Thermoresponsive behaviour of terpolymers containing poly(ethylene oxide), poly(2-ethyl-2-oxazoline) and poly(ε-caprolactone) blocks in aqueous solutions: an NMR study</title><author>Konefał, Rafał ; Spěváček, Jiří ; Jäger, Eliezer ; Petrova, Svetlana</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c349t-1bdaff31506a36959860349ee55e994292e95d29da35c698292cc4f893cdae523</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2016</creationdate><topic>Aqueous solutions</topic><topic>Behavior</topic><topic>Characterization and Evaluation of Materials</topic><topic>Chemistry</topic><topic>Chemistry and Materials Science</topic><topic>Complex Fluids and Microfluidics</topic><topic>Copolymers</topic><topic>Food Science</topic><topic>Nanoparticles</topic><topic>Nanotechnology and Microengineering</topic><topic>NMR spectroscopy</topic><topic>Nuclear magnetic resonance</topic><topic>Original Contribution</topic><topic>Oxides</topic><topic>Physical Chemistry</topic><topic>Polymer Sciences</topic><topic>Soft and Granular Matter</topic><topic>Terpolymers</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Konefał, Rafał</creatorcontrib><creatorcontrib>Spěváček, Jiří</creatorcontrib><creatorcontrib>Jäger, Eliezer</creatorcontrib><creatorcontrib>Petrova, Svetlana</creatorcontrib><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>Technology Research Database</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>Materials Science & Engineering Collection</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central</collection><collection>Technology Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Materials Science Collection</collection><collection>ProQuest Central Korea</collection><collection>SciTech Premium Collection</collection><collection>Materials Research Database</collection><collection>Materials Science Database</collection><collection>Materials Science Collection</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><jtitle>Colloid and polymer science</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Konefał, Rafał</au><au>Spěváček, Jiří</au><au>Jäger, Eliezer</au><au>Petrova, Svetlana</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Thermoresponsive behaviour of terpolymers containing poly(ethylene oxide), poly(2-ethyl-2-oxazoline) and poly(ε-caprolactone) blocks in aqueous solutions: an NMR study</atitle><jtitle>Colloid and polymer science</jtitle><stitle>Colloid Polym Sci</stitle><date>2016-11-01</date><risdate>2016</risdate><volume>294</volume><issue>11</issue><spage>1717</spage><epage>1726</epage><pages>1717-1726</pages><issn>0303-402X</issn><eissn>1435-1536</eissn><abstract>1
H NMR spectroscopy was used for the first time to investigate temperature behaviour of aqueous solutions of nanoparticles (NPs) prepared from linear and Y-shape terpolymers containing blocks of poly(ethylene oxide) (PEO), poly(2-ethyl-2-oxazoline) (PEtOx) and one linear or two star poly(ε-caprolactone) (PCL) blocks with different length. Structural changes were characterized separately for all blocks in a temperature range 295–360 K, and a broad transition was observed at temperatures above ~320 K. The temperature behaviour of NPs solutions depends on polymer concentration and especially on terpolymer architecture. At the same time, NMR measurements revealed important role of PCL blocks in this behaviour. The spin-spin relaxation times
T
2
of water (HDO) give information on the behaviour of water and on polymer-water interactions within the aforementioned temperature range. In NPs solutions of the linear copolymer, two types of water were detected at higher temperatures: “free” and “bound” water molecules with long and very short
T
2
values, respectively. For NPs solution of non-linear terpolymer, two types of water were observed only for the highest used (1.5 wt%) polymer concentration.</abstract><cop>Berlin/Heidelberg</cop><pub>Springer Berlin Heidelberg</pub><doi>10.1007/s00396-016-3930-7</doi><tpages>10</tpages></addata></record> |
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| subjects | Aqueous solutions Behavior Characterization and Evaluation of Materials Chemistry Chemistry and Materials Science Complex Fluids and Microfluidics Copolymers Food Science Nanoparticles Nanotechnology and Microengineering NMR spectroscopy Nuclear magnetic resonance Original Contribution Oxides Physical Chemistry Polymer Sciences Soft and Granular Matter Terpolymers |
| title | Thermoresponsive behaviour of terpolymers containing poly(ethylene oxide), poly(2-ethyl-2-oxazoline) and poly(ε-caprolactone) blocks in aqueous solutions: an NMR study |
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