DC Field | Value | Language |
---|---|---|
dc.contributor.author | Gao, Lingfeng | - |
dc.contributor.author | Oh, Joongsuk | - |
dc.contributor.author | Tu, Yingfeng | - |
dc.contributor.author | Chang, Taihyun | - |
dc.date.accessioned | 2018-06-15T05:30:39Z | - |
dc.date.available | 2018-06-15T05:30:39Z | - |
dc.date.created | 2018-02-05 | - |
dc.date.issued | 2018-01 | - |
dc.identifier.issn | 0032-3861 | - |
dc.identifier.uri | https://oasis.postech.ac.kr/handle/2014.oak/50549 | - |
dc.description.abstract | Cyclic polymers synthesized by ring-closure method from linear precursors contain some of linear contaminates. In this work, the origin of linear contaminates in cyclic polystyrenes (c-PS) is demonstrated by the coupling of liquid chromatography at the critical condition (LCCC) with matrix-assisted laser desorption/ionization time-of-flight mass spectra. The linear contaminates are revealed to be the "dead" chains during ATRP by chain termination, the unreacted linear polystyrene (l-PS) precursors, and the dimers by the imperfect ring-closure reaction. The c-PS are purified by LCCC fractionation, and the results show the LCCC fractionation at the critical adsorption point (CAP) of c-PS is more efficient than that at the CAP of linears for low molecular weight (<10,000) PS. A two-step LCCC method is presented for the preparation of c-PS with high purity (>99.6%) via the tandem-coupled LCCC fractionation at the CAP of l-PS and at the CAP of c-PS. (C) 2017 Elsevier Ltd. All rights reserved. | - |
dc.language | English | - |
dc.publisher | ELSEVIER SCI LTD | - |
dc.relation.isPartOf | POLYMER | - |
dc.subject | ACCELERATING CLICK REACTION | - |
dc.subject | RADICAL POLYMERIZATION | - |
dc.subject | LINEAR PRECURSOR | - |
dc.subject | GRAFT COPOLYMER | - |
dc.subject | BLOCK-COPOLYMER | - |
dc.subject | RING POLYMER | - |
dc.subject | CYCLIZATION | - |
dc.subject | ARCHITECTURES | - |
dc.subject | TREFOIL | - |
dc.subject | CHAINS | - |
dc.title | Preparation of low molecular weight cyclic polystyrenes with high purity via liquid chromatography at the critical condition | - |
dc.type | Article | - |
dc.identifier.doi | 10.1016/j.polymer.2017.12.020 | - |
dc.type.rims | ART | - |
dc.identifier.bibliographicCitation | POLYMER, v.135, pp.279 - 284 | - |
dc.identifier.wosid | 000419829500031 | - |
dc.date.tcdate | 2019-02-01 | - |
dc.citation.endPage | 284 | - |
dc.citation.startPage | 279 | - |
dc.citation.title | POLYMER | - |
dc.citation.volume | 135 | - |
dc.contributor.affiliatedAuthor | Chang, Taihyun | - |
dc.identifier.scopusid | 2-s2.0-85037975739 | - |
dc.description.journalClass | 1 | - |
dc.description.journalClass | 1 | - |
dc.description.wostc | 1 | - |
dc.type.docType | Article | - |
dc.subject.keywordPlus | ACCELERATING CLICK REACTION | - |
dc.subject.keywordPlus | RADICAL POLYMERIZATION | - |
dc.subject.keywordPlus | LINEAR PRECURSOR | - |
dc.subject.keywordPlus | GRAFT COPOLYMER | - |
dc.subject.keywordPlus | BLOCK-COPOLYMER | - |
dc.subject.keywordPlus | RING POLYMER | - |
dc.subject.keywordPlus | CYCLIZATION | - |
dc.subject.keywordPlus | ARCHITECTURES | - |
dc.subject.keywordPlus | TREFOIL | - |
dc.subject.keywordPlus | CHAINS | - |
dc.subject.keywordAuthor | Cyclic polymer | - |
dc.subject.keywordAuthor | Fractionation | - |
dc.subject.keywordAuthor | Liquid chromatography at critical condition | - |
dc.relation.journalWebOfScienceCategory | Polymer Science | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Polymer Science | - |
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