DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kim, HJ | - |
dc.contributor.author | Bin Kim, S | - |
dc.contributor.author | Kim, JK | - |
dc.contributor.author | Jung, YM | - |
dc.date.accessioned | 2016-04-01T01:04:55Z | - |
dc.date.available | 2016-04-01T01:04:55Z | - |
dc.date.created | 2009-03-19 | - |
dc.date.issued | 2008-12-04 | - |
dc.identifier.issn | 1520-6106 | - |
dc.identifier.other | 2008-OAK-0000008335 | - |
dc.identifier.uri | https://oasis.postech.ac.kr/handle/2014.oak/22381 | - |
dc.description.abstract | The effect of hydrostatic pressure (P) on the phase transitions of polystyrene-block-poly(n-pentyl methacrylate) copolymer [PS-b-PnPMA] was investigated with FTIR spectroscopy at various temperatures. The experiments were performed by using a specially designed pressure cell optimized for low-pressure regime (< 100 bar) with a higher resolution (similar to 1 bar). The size of the closed loop consisting of both the lower disorder-to-order transition (LDOT) and the upper order-to-disorder transition (UODT) measured by FTIR spectroscopy becomes smaller with increasing P, consistent with results obtained from birefringence measurement. At lower temperatures with increasing P, the PS main chains are found to move before the PnPMA main chains. This is because the mobility of the PnPMA main chains is restricted due to the cluster formation of the alkyl side chain. At higher temperatures, the PnPMA block chains are more mobile than the PS block chains due to their larger specific volumes. The results indicate that the LDOT is mainly affected by a favorable directional interaction between PS and PnPMA blocks due to the cluster formation of the alkyl side chain, whereas the UODT depends on the combinatorial entropy. | - |
dc.description.statementofresponsibility | X | - |
dc.language | English | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.relation.isPartOf | JOURNAL OF PHYSICAL CHEMISTRY B | - |
dc.subject | ORDER-DISORDER TRANSITION | - |
dc.subject | METHACRYLATE) COPOLYMERS | - |
dc.subject | INFRARED-SPECTROSCOPY | - |
dc.subject | DIBLOCK COPOLYMERS | - |
dc.subject | BEHAVIOR | - |
dc.subject | POLYSTYRENE | - |
dc.subject | TEMPERATURE | - |
dc.subject | SCATTERING | - |
dc.subject | TRANSFORM | - |
dc.subject | MELT | - |
dc.title | Hydrostatic Pressure Effect on the Phase Transitions of a Closed-Loop Type Block Copolymer by Using 2D FTIR Correlation Spectroscopy | - |
dc.type | Article | - |
dc.contributor.college | 화학공학과 | - |
dc.identifier.doi | 10.1021/JP806019N | - |
dc.author.google | Kim, HJ | - |
dc.author.google | Bin Kim, S | - |
dc.author.google | Kim, JK | - |
dc.author.google | Jung, YM | - |
dc.relation.volume | 112 | - |
dc.relation.issue | 48 | - |
dc.relation.startpage | 15295 | - |
dc.relation.lastpage | 15300 | - |
dc.contributor.id | 10076321 | - |
dc.relation.journal | JOURNAL OF PHYSICAL CHEMISTRY B | - |
dc.relation.index | SCI급, SCOPUS 등재논문 | - |
dc.relation.sci | SCI | - |
dc.collections.name | Journal Papers | - |
dc.type.rims | ART | - |
dc.identifier.bibliographicCitation | JOURNAL OF PHYSICAL CHEMISTRY B, v.112, no.48, pp.15295 - 15300 | - |
dc.identifier.wosid | 000261218200006 | - |
dc.date.tcdate | 2019-01-01 | - |
dc.citation.endPage | 15300 | - |
dc.citation.number | 48 | - |
dc.citation.startPage | 15295 | - |
dc.citation.title | JOURNAL OF PHYSICAL CHEMISTRY B | - |
dc.citation.volume | 112 | - |
dc.contributor.affiliatedAuthor | Bin Kim, S | - |
dc.contributor.affiliatedAuthor | Kim, JK | - |
dc.identifier.scopusid | 2-s2.0-57949086741 | - |
dc.description.journalClass | 1 | - |
dc.description.journalClass | 1 | - |
dc.description.wostc | 7 | - |
dc.description.scptc | 7 | * |
dc.date.scptcdate | 2018-05-121 | * |
dc.type.docType | Article | - |
dc.subject.keywordPlus | ORDER-DISORDER TRANSITION | - |
dc.subject.keywordPlus | INFRARED-SPECTROSCOPY | - |
dc.subject.keywordPlus | BEHAVIOR | - |
dc.subject.keywordPlus | TEMPERATURE | - |
dc.subject.keywordPlus | SCATTERING | - |
dc.subject.keywordPlus | STYRENE | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Chemistry | - |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.
library@postech.ac.kr Tel: 054-279-2548
Copyrights © by 2017 Pohang University of Science ad Technology All right reserved.