Quantitative analysis for reaction between epoxidized natural rubber and poly ( L ‐lactide) through 1 H‐NMR spectroscopy
Reaction between epoxidized natural rubber and poly( L ‐lactide) (PLLA) was investigated quantitatively in terms of conversion of the epoxidized natural rubber. The epoxidized natural rubber was prepared by epoxidation of high ammonia natural rubber (HA‐NR) or deproteinized natural rubber (DPNR) wit...
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| Veröffentlicht in: | Journal of applied polymer science 2010-03, Vol.115 (6), p.3598-3604 |
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| container_title | Journal of applied polymer science |
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| creator | Saito, Takayuki Klinklai, Warunee Yamamoto, Yoshimasa Kawahara, Seiichi Isono, Yoshinobu Ohtake, Yoshito |
| description | Reaction between epoxidized natural rubber and poly(
L
‐lactide) (PLLA) was investigated quantitatively in terms of conversion of the epoxidized natural rubber. The epoxidized natural rubber was prepared by epoxidation of high ammonia natural rubber (HA‐NR) or deproteinized natural rubber (DPNR) with peracetic acid followed by depolymerization with ammonium persulfate. The resulting liquid HA‐NR having epoxy group (LENR) or liquid DPNR having epoxy group (LEDPNR) were subjected to heating at 473 K for 20 min, after blending with PLLA. The products were characterized through morphology observation, DSC measurement, and
1
H‐NMR spectroscopy. The conversions of the rubbers were estimated from intensity ratio of signals in
1
H‐NMR spectrum for the products after removing unreacted rubber with toluene. Difference in the estimated conversion between the LENR/PLLA and LEDPNR/PLLA blends was interpreted in relation to proteins present in the rubber. © 2009 Wiley Periodicals, Inc. J Appl Polym Sci, 2010 |
| doi_str_mv | 10.1002/app.30846 |
| format | Article |
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L
‐lactide) (PLLA) was investigated quantitatively in terms of conversion of the epoxidized natural rubber. The epoxidized natural rubber was prepared by epoxidation of high ammonia natural rubber (HA‐NR) or deproteinized natural rubber (DPNR) with peracetic acid followed by depolymerization with ammonium persulfate. The resulting liquid HA‐NR having epoxy group (LENR) or liquid DPNR having epoxy group (LEDPNR) were subjected to heating at 473 K for 20 min, after blending with PLLA. The products were characterized through morphology observation, DSC measurement, and
1
H‐NMR spectroscopy. The conversions of the rubbers were estimated from intensity ratio of signals in
1
H‐NMR spectrum for the products after removing unreacted rubber with toluene. Difference in the estimated conversion between the LENR/PLLA and LEDPNR/PLLA blends was interpreted in relation to proteins present in the rubber. © 2009 Wiley Periodicals, Inc. J Appl Polym Sci, 2010</description><identifier>ISSN: 0021-8995</identifier><identifier>EISSN: 1097-4628</identifier><identifier>DOI: 10.1002/app.30846</identifier><language>eng</language><ispartof>Journal of applied polymer science, 2010-03, Vol.115 (6), p.3598-3604</ispartof><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c746-79cf97a6be522d5090e92d139c66bba333ac915c75ce6f4f3f9e9e06d259213a3</citedby><cites>FETCH-LOGICAL-c746-79cf97a6be522d5090e92d139c66bba333ac915c75ce6f4f3f9e9e06d259213a3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,27901,27902</link.rule.ids></links><search><creatorcontrib>Saito, Takayuki</creatorcontrib><creatorcontrib>Klinklai, Warunee</creatorcontrib><creatorcontrib>Yamamoto, Yoshimasa</creatorcontrib><creatorcontrib>Kawahara, Seiichi</creatorcontrib><creatorcontrib>Isono, Yoshinobu</creatorcontrib><creatorcontrib>Ohtake, Yoshito</creatorcontrib><title>Quantitative analysis for reaction between epoxidized natural rubber and poly ( L ‐lactide) through 1 H‐NMR spectroscopy</title><title>Journal of applied polymer science</title><description>Reaction between epoxidized natural rubber and poly(
L
‐lactide) (PLLA) was investigated quantitatively in terms of conversion of the epoxidized natural rubber. The epoxidized natural rubber was prepared by epoxidation of high ammonia natural rubber (HA‐NR) or deproteinized natural rubber (DPNR) with peracetic acid followed by depolymerization with ammonium persulfate. The resulting liquid HA‐NR having epoxy group (LENR) or liquid DPNR having epoxy group (LEDPNR) were subjected to heating at 473 K for 20 min, after blending with PLLA. The products were characterized through morphology observation, DSC measurement, and
1
H‐NMR spectroscopy. The conversions of the rubbers were estimated from intensity ratio of signals in
1
H‐NMR spectrum for the products after removing unreacted rubber with toluene. Difference in the estimated conversion between the LENR/PLLA and LEDPNR/PLLA blends was interpreted in relation to proteins present in the rubber. © 2009 Wiley Periodicals, Inc. J Appl Polym Sci, 2010</description><issn>0021-8995</issn><issn>1097-4628</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2010</creationdate><recordtype>article</recordtype><recordid>eNotkEtOwzAYhC0EEqWw4Ab_ki5S_EiceokqoEgFBOo-cpw_NCjElu0AQSw4AmfkJITHaqQZzYz0EXLM6JxRyk-1c3NBF6ncIRNGVZ6kki92yWTMWLJQKtsnByE8UspYRuWEvN_1uotN1LF5RtCdbofQBKitB4_axMZ2UGJ8QewAnX1tquYNK-h07L1uwfdliX7sVeBsO8AJrOHr47P9aVY4g7j1tn_YAoPVaN9c30NwaKK3wVg3HJK9WrcBj_51SjYX55vlKlnfXl4tz9aJyVOZ5MrUKteyxIzzKqOKouIVE8pIWZZaCKGNYpnJM4OyTmtRK1RIZcUzxZnQYkpmf7Nm_A0e68L55kn7oWC0-KFWjNSKX2riGygLY30</recordid><startdate>20100315</startdate><enddate>20100315</enddate><creator>Saito, Takayuki</creator><creator>Klinklai, Warunee</creator><creator>Yamamoto, Yoshimasa</creator><creator>Kawahara, Seiichi</creator><creator>Isono, Yoshinobu</creator><creator>Ohtake, Yoshito</creator><scope>AAYXX</scope><scope>CITATION</scope></search><sort><creationdate>20100315</creationdate><title>Quantitative analysis for reaction between epoxidized natural rubber and poly ( L ‐lactide) through 1 H‐NMR spectroscopy</title><author>Saito, Takayuki ; Klinklai, Warunee ; Yamamoto, Yoshimasa ; Kawahara, Seiichi ; Isono, Yoshinobu ; Ohtake, Yoshito</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c746-79cf97a6be522d5090e92d139c66bba333ac915c75ce6f4f3f9e9e06d259213a3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2010</creationdate><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Saito, Takayuki</creatorcontrib><creatorcontrib>Klinklai, Warunee</creatorcontrib><creatorcontrib>Yamamoto, Yoshimasa</creatorcontrib><creatorcontrib>Kawahara, Seiichi</creatorcontrib><creatorcontrib>Isono, Yoshinobu</creatorcontrib><creatorcontrib>Ohtake, Yoshito</creatorcontrib><collection>CrossRef</collection><jtitle>Journal of applied polymer science</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Saito, Takayuki</au><au>Klinklai, Warunee</au><au>Yamamoto, Yoshimasa</au><au>Kawahara, Seiichi</au><au>Isono, Yoshinobu</au><au>Ohtake, Yoshito</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Quantitative analysis for reaction between epoxidized natural rubber and poly ( L ‐lactide) through 1 H‐NMR spectroscopy</atitle><jtitle>Journal of applied polymer science</jtitle><date>2010-03-15</date><risdate>2010</risdate><volume>115</volume><issue>6</issue><spage>3598</spage><epage>3604</epage><pages>3598-3604</pages><issn>0021-8995</issn><eissn>1097-4628</eissn><abstract>Reaction between epoxidized natural rubber and poly(
L
‐lactide) (PLLA) was investigated quantitatively in terms of conversion of the epoxidized natural rubber. The epoxidized natural rubber was prepared by epoxidation of high ammonia natural rubber (HA‐NR) or deproteinized natural rubber (DPNR) with peracetic acid followed by depolymerization with ammonium persulfate. The resulting liquid HA‐NR having epoxy group (LENR) or liquid DPNR having epoxy group (LEDPNR) were subjected to heating at 473 K for 20 min, after blending with PLLA. The products were characterized through morphology observation, DSC measurement, and
1
H‐NMR spectroscopy. The conversions of the rubbers were estimated from intensity ratio of signals in
1
H‐NMR spectrum for the products after removing unreacted rubber with toluene. Difference in the estimated conversion between the LENR/PLLA and LEDPNR/PLLA blends was interpreted in relation to proteins present in the rubber. © 2009 Wiley Periodicals, Inc. J Appl Polym Sci, 2010</abstract><doi>10.1002/app.30846</doi><tpages>7</tpages></addata></record> |
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| source | Wiley Online Library Journals Frontfile Complete |
| title | Quantitative analysis for reaction between epoxidized natural rubber and poly ( L ‐lactide) through 1 H‐NMR spectroscopy |
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