1H NMR and 13C NMR investigations of sequence distribution and tacticity in poly(vinyl alcohol- co-vinyl levulinate)
The microstructure of poly(vinyl alcohol- co-vinyl levulinate) (VOH–VLA copolymer) was studied by 1H NMR and 13C NMR techniques. The sequence distributions could be obtained from the six methine triads observed in the 500-MHz 1H NMR spectra of the copolymers: the three methylene dyads and the three...
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| Veröffentlicht in: | Polymer (Guilford) 2006-10, Vol.47 (22), p.7827-7834 |
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| container_title | Polymer (Guilford) |
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| creator | Wang, Yanmei Ono, Hirokuni Ikeda, Atsushi Hori, Naruhito Takemura, Akio Yamada, Tatsuhiko Tsukatani, Toshihide |
| description | The microstructure of poly(vinyl alcohol-
co-vinyl levulinate) (VOH–VLA copolymer) was studied by
1H NMR and
13C NMR techniques. The sequence distributions could be obtained from the six methine triads observed in the 500-MHz
1H NMR spectra of the copolymers: the three methylene dyads and the three carbonyl triads observed in 125.6-MHz
13C NMR spectra of the copolymers. The reaction activity order of different tacticity hydroxyl in PVA was found to be rr
>
mr
>
mm by investigating VOH-centered methine tacticity triads. The vinyl levulinate content (VLC), the number-average sequence length, dyad–triad relation and triad–triad relation (
R) were calculated from methine triads, methylene dyads and carbonyl triads in
1H NMR and
13C NMR spectra successfully, and they were in good agreement with each other. The consistency of the dyad–triad and triad–triad relations shows that head to head or tail to tail fragments are hardly present in VOH–VLA copolymer. |
| doi_str_mv | 10.1016/j.polymer.2006.08.046 |
| format | Article |
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co-vinyl levulinate) (VOH–VLA copolymer) was studied by
1H NMR and
13C NMR techniques. The sequence distributions could be obtained from the six methine triads observed in the 500-MHz
1H NMR spectra of the copolymers: the three methylene dyads and the three carbonyl triads observed in 125.6-MHz
13C NMR spectra of the copolymers. The reaction activity order of different tacticity hydroxyl in PVA was found to be rr
>
mr
>
mm by investigating VOH-centered methine tacticity triads. The vinyl levulinate content (VLC), the number-average sequence length, dyad–triad relation and triad–triad relation (
R) were calculated from methine triads, methylene dyads and carbonyl triads in
1H NMR and
13C NMR spectra successfully, and they were in good agreement with each other. The consistency of the dyad–triad and triad–triad relations shows that head to head or tail to tail fragments are hardly present in VOH–VLA copolymer.</description><identifier>ISSN: 0032-3861</identifier><identifier>EISSN: 1873-2291</identifier><identifier>DOI: 10.1016/j.polymer.2006.08.046</identifier><identifier>CODEN: POLMAG</identifier><language>eng</language><publisher>Oxford: Elsevier Ltd</publisher><subject>Applied sciences ; Exact sciences and technology ; Organic polymers ; Physicochemistry of polymers ; Poly(vinyl alcohol- co-vinyl levulinate) ; Properties and characterization ; Sequence distribution ; Structure, morphology and analysis ; Tacticity</subject><ispartof>Polymer (Guilford), 2006-10, Vol.47 (22), p.7827-7834</ispartof><rights>2006 Elsevier Ltd</rights><rights>2006 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c2150-587478bf9077b6d7974ed634d10b2f10c3e81014e9dd46ef5168bce2e8ea44093</citedby><cites>FETCH-LOGICAL-c2150-587478bf9077b6d7974ed634d10b2f10c3e81014e9dd46ef5168bce2e8ea44093</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S0032386106009992$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3536,27903,27904,65309</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=18185459$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Wang, Yanmei</creatorcontrib><creatorcontrib>Ono, Hirokuni</creatorcontrib><creatorcontrib>Ikeda, Atsushi</creatorcontrib><creatorcontrib>Hori, Naruhito</creatorcontrib><creatorcontrib>Takemura, Akio</creatorcontrib><creatorcontrib>Yamada, Tatsuhiko</creatorcontrib><creatorcontrib>Tsukatani, Toshihide</creatorcontrib><title>1H NMR and 13C NMR investigations of sequence distribution and tacticity in poly(vinyl alcohol- co-vinyl levulinate)</title><title>Polymer (Guilford)</title><description>The microstructure of poly(vinyl alcohol-
co-vinyl levulinate) (VOH–VLA copolymer) was studied by
1H NMR and
13C NMR techniques. The sequence distributions could be obtained from the six methine triads observed in the 500-MHz
1H NMR spectra of the copolymers: the three methylene dyads and the three carbonyl triads observed in 125.6-MHz
13C NMR spectra of the copolymers. The reaction activity order of different tacticity hydroxyl in PVA was found to be rr
>
mr
>
mm by investigating VOH-centered methine tacticity triads. The vinyl levulinate content (VLC), the number-average sequence length, dyad–triad relation and triad–triad relation (
R) were calculated from methine triads, methylene dyads and carbonyl triads in
1H NMR and
13C NMR spectra successfully, and they were in good agreement with each other. The consistency of the dyad–triad and triad–triad relations shows that head to head or tail to tail fragments are hardly present in VOH–VLA copolymer.</description><subject>Applied sciences</subject><subject>Exact sciences and technology</subject><subject>Organic polymers</subject><subject>Physicochemistry of polymers</subject><subject>Poly(vinyl alcohol- co-vinyl levulinate)</subject><subject>Properties and characterization</subject><subject>Sequence distribution</subject><subject>Structure, morphology and analysis</subject><subject>Tacticity</subject><issn>0032-3861</issn><issn>1873-2291</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2006</creationdate><recordtype>article</recordtype><recordid>eNqFkE1v1DAQhq2qSGwLPwHJFyp6SBg7TuKcEFoVilRAQnC2HHtSvPLGW9u70v77Ot2VODIXj8bvOx8PIe8Y1AxY93FT74I_bjHWHKCrQdYguguyYrJvKs4HdklWAA2vGtmx1-QqpQ0A8JaLFcnsnv74_ovq2VLWrF9yNx8wZfeoswtzomGiCZ_2OBuk1qUc3bhffl48WZvsjMvH4qLLGh8Obj56qr0Jf4OvqAnVqeLxsPdu1hlv35BXk_YJ357fa_Lny93v9X318PPrt_Xnh8pw1kLVyl70cpwG6Puxs_3QC7RdIyyDkU8MTIOyABA4WCs6nFrWydEgR4laCBiaa3Jz6ruLoRyQstq6ZNB7PWPYJ8UHXmKAImxPQhNDShEntYtuq-NRMVALY7VRZ8ZqYaxAqsK4-N6fB-hktJ-ino1L_8ySyVa0yyKfTjos1x5c6ZKMW4BaF9FkZYP7z6Rnm2qVIw</recordid><startdate>20061018</startdate><enddate>20061018</enddate><creator>Wang, Yanmei</creator><creator>Ono, Hirokuni</creator><creator>Ikeda, Atsushi</creator><creator>Hori, Naruhito</creator><creator>Takemura, Akio</creator><creator>Yamada, Tatsuhiko</creator><creator>Tsukatani, Toshihide</creator><general>Elsevier Ltd</general><general>Elsevier</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8FD</scope><scope>F28</scope><scope>FR3</scope><scope>JG9</scope></search><sort><creationdate>20061018</creationdate><title>1H NMR and 13C NMR investigations of sequence distribution and tacticity in poly(vinyl alcohol- co-vinyl levulinate)</title><author>Wang, Yanmei ; Ono, Hirokuni ; Ikeda, Atsushi ; Hori, Naruhito ; Takemura, Akio ; Yamada, Tatsuhiko ; Tsukatani, Toshihide</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c2150-587478bf9077b6d7974ed634d10b2f10c3e81014e9dd46ef5168bce2e8ea44093</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2006</creationdate><topic>Applied sciences</topic><topic>Exact sciences and technology</topic><topic>Organic polymers</topic><topic>Physicochemistry of polymers</topic><topic>Poly(vinyl alcohol- co-vinyl levulinate)</topic><topic>Properties and characterization</topic><topic>Sequence distribution</topic><topic>Structure, morphology and analysis</topic><topic>Tacticity</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Wang, Yanmei</creatorcontrib><creatorcontrib>Ono, Hirokuni</creatorcontrib><creatorcontrib>Ikeda, Atsushi</creatorcontrib><creatorcontrib>Hori, Naruhito</creatorcontrib><creatorcontrib>Takemura, Akio</creatorcontrib><creatorcontrib>Yamada, Tatsuhiko</creatorcontrib><creatorcontrib>Tsukatani, Toshihide</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>Technology Research Database</collection><collection>ANTE: Abstracts in New Technology & Engineering</collection><collection>Engineering Research Database</collection><collection>Materials Research Database</collection><jtitle>Polymer (Guilford)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Wang, Yanmei</au><au>Ono, Hirokuni</au><au>Ikeda, Atsushi</au><au>Hori, Naruhito</au><au>Takemura, Akio</au><au>Yamada, Tatsuhiko</au><au>Tsukatani, Toshihide</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>1H NMR and 13C NMR investigations of sequence distribution and tacticity in poly(vinyl alcohol- co-vinyl levulinate)</atitle><jtitle>Polymer (Guilford)</jtitle><date>2006-10-18</date><risdate>2006</risdate><volume>47</volume><issue>22</issue><spage>7827</spage><epage>7834</epage><pages>7827-7834</pages><issn>0032-3861</issn><eissn>1873-2291</eissn><coden>POLMAG</coden><abstract>The microstructure of poly(vinyl alcohol-
co-vinyl levulinate) (VOH–VLA copolymer) was studied by
1H NMR and
13C NMR techniques. The sequence distributions could be obtained from the six methine triads observed in the 500-MHz
1H NMR spectra of the copolymers: the three methylene dyads and the three carbonyl triads observed in 125.6-MHz
13C NMR spectra of the copolymers. The reaction activity order of different tacticity hydroxyl in PVA was found to be rr
>
mr
>
mm by investigating VOH-centered methine tacticity triads. The vinyl levulinate content (VLC), the number-average sequence length, dyad–triad relation and triad–triad relation (
R) were calculated from methine triads, methylene dyads and carbonyl triads in
1H NMR and
13C NMR spectra successfully, and they were in good agreement with each other. The consistency of the dyad–triad and triad–triad relations shows that head to head or tail to tail fragments are hardly present in VOH–VLA copolymer.</abstract><cop>Oxford</cop><pub>Elsevier Ltd</pub><doi>10.1016/j.polymer.2006.08.046</doi><tpages>8</tpages></addata></record> |
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| ispartof | Polymer (Guilford), 2006-10, Vol.47 (22), p.7827-7834 |
| issn | 0032-3861 1873-2291 |
| language | eng |
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| source | Elsevier ScienceDirect Journals |
| subjects | Applied sciences Exact sciences and technology Organic polymers Physicochemistry of polymers Poly(vinyl alcohol- co-vinyl levulinate) Properties and characterization Sequence distribution Structure, morphology and analysis Tacticity |
| title | 1H NMR and 13C NMR investigations of sequence distribution and tacticity in poly(vinyl alcohol- co-vinyl levulinate) |
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