DC Field | Value | Language |
---|---|---|
dc.contributor.author | Lee, JS | ko |
dc.contributor.author | Lee, HK | ko |
dc.contributor.author | Kim, Sung Chul | ko |
dc.date.accessioned | 2008-02-11T03:47:08Z | - |
dc.date.available | 2008-02-11T03:47:08Z | - |
dc.date.created | 2012-02-06 | - |
dc.date.created | 2012-02-06 | - |
dc.date.issued | 2004-06 | - |
dc.identifier.citation | POLYMER, v.45, no.13, pp.4491 - 4498 | - |
dc.identifier.issn | 0032-3861 | - |
dc.identifier.uri | http://hdl.handle.net/10203/3004 | - |
dc.description.abstract | Some of thermodynamic parameters for poly(lactic acid) (PLA)/dialkyl phthalate systems have been investigated. Both poly(DL-lactic acid) (PDLLA) and poly(L-lactic acid) (PLLA), which are stereoisomers of PLA, were used and a series of 1,2-dialkyl phthalates with different alkyl chain, from methyl to hexyl, was adopted as a solvent. Theta temperatures of PLA/dialkyl phthalate system were determined and subsequently the second virial coefficient and the interaction parameter were evaluated. Theta temperature was determined by the extrapolation of the highest liquid-liquid phase separation temperatures and Zimm plots were constructed by static light scattering to obtain second virial coefficient and z-average radius of gyration. Second virial coefficient and z-average radius of gyration was examined quantitatively as a function of temperature and solvent. Thermodynamic parameters that could not be obtained experimentally were calculated based on the Flory-Huggins theory. (C) 2004 Elsevier Ltd. All rights reserved. | - |
dc.language | English | - |
dc.language.iso | en_US | en |
dc.publisher | Elsevier Sci Ltd | - |
dc.subject | UNPERTURBED DIMENSIONS | - |
dc.subject | PHASE-SEPARATION | - |
dc.subject | POLYLACTIC ACID | - |
dc.subject | POLYPROPYLENE | - |
dc.subject | TEMPERATURES | - |
dc.subject | CONFORMATION | - |
dc.subject | STATISTICS | - |
dc.subject | SYSTEMS | - |
dc.subject | CHAINS | - |
dc.title | Thermodynamic parameters of poly(lactic acid) solutions in dialkyl phthalate | - |
dc.type | Article | - |
dc.identifier.wosid | 000221836600016 | - |
dc.identifier.scopusid | 2-s2.0-2542438860 | - |
dc.type.rims | ART | - |
dc.citation.volume | 45 | - |
dc.citation.issue | 13 | - |
dc.citation.beginningpage | 4491 | - |
dc.citation.endingpage | 4498 | - |
dc.citation.publicationname | POLYMER | - |
dc.identifier.doi | 10.1016/j.polymer.2004.04.036 | - |
dc.embargo.liftdate | 9999-12-31 | - |
dc.embargo.terms | 9999-12-31 | - |
dc.contributor.localauthor | Kim, Sung Chul | - |
dc.contributor.nonIdAuthor | Lee, JS | - |
dc.contributor.nonIdAuthor | Lee, HK | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | poly(lactic acid) | - |
dc.subject.keywordAuthor | static light scattering | - |
dc.subject.keywordAuthor | theta temperature | - |
dc.subject.keywordPlus | UNPERTURBED DIMENSIONS | - |
dc.subject.keywordPlus | PHASE-SEPARATION | - |
dc.subject.keywordPlus | POLYLACTIC ACID | - |
dc.subject.keywordPlus | POLYPROPYLENE | - |
dc.subject.keywordPlus | TEMPERATURES | - |
dc.subject.keywordPlus | CONFORMATION | - |
dc.subject.keywordPlus | STATISTICS | - |
dc.subject.keywordPlus | SYSTEMS | - |
dc.subject.keywordPlus | CHAINS | - |
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