DC Field | Value | Language |
---|---|---|
dc.contributor.author | Ahn, Nam Young | ko |
dc.contributor.author | Seo, Myungeun | ko |
dc.date.accessioned | 2016-07-07T07:03:01Z | - |
dc.date.available | 2016-07-07T07:03:01Z | - |
dc.date.created | 2016-06-17 | - |
dc.date.created | 2016-06-17 | - |
dc.date.issued | 2016 | - |
dc.identifier.citation | RSC ADVANCES, v.6, no.53, pp.47715 - 47722 | - |
dc.identifier.issn | 2046-2069 | - |
dc.identifier.uri | http://hdl.handle.net/10203/210202 | - |
dc.description.abstract | We explored reversible addition-fragmentation chain transfer (RAFT) copolymerization of 1,2-bis(maleimidoethane) (BMI) with styrene (S) in the presence of polylactide macro-chain transfer agent (PLA-CTA) as a means to synthesize heteroarm core cross-linked star (CCS) polymers consisting of PLA and PS arms (PLA(n)PS(n)). Because of the strong alternating tendency of maleimide and styrenic double bonds, copolymerization of BMI with an excess of S depleted BMI in the early stage of polymerization forming a cross-linked core. The remaining S was successively polymerized to grow PS arms from the core, completing PLA(n)PSn via "in-out" mechanism. Use of a stoichiometric amount of S produced PLA(n), which could be used as a macro-CTA for the synthesis of more well-defined PLA(n)PSn. Compared with divinylbenzene, copolymerization of BMI with S was much more effective for core formation suggesting the importance of the alternating character of the copolymerization. While PLA(n)PSn existed as stable nanoparticles in a neutral solvent in contrast to linear PLA-b-PS, it also self-assembled to form microphase-separated structures in a selective solvent and in bulk indicating that PLA and PS arms can be intramolecularly segregated. | - |
dc.language | English | - |
dc.publisher | ROYAL SOC CHEMISTRY | - |
dc.subject | FRAGMENTATION TRANSFER POLYMERIZATION | - |
dc.subject | MICROPHASE SEPARATION | - |
dc.subject | BLOCK-COPOLYMERS | - |
dc.subject | MACROMOLECULAR ARCHITECTURES | - |
dc.subject | DISPERSION POLYMERIZATION | - |
dc.subject | RADICAL POLYMERIZATION | - |
dc.subject | MICELLES | - |
dc.subject | POLYSTYRENE | - |
dc.title | Heteroarm core cross-linked star polymers via RAFT copolymerization of styrene and bismaleimide | - |
dc.type | Article | - |
dc.identifier.wosid | 000377253400063 | - |
dc.identifier.scopusid | 2-s2.0-84971228955 | - |
dc.type.rims | ART | - |
dc.citation.volume | 6 | - |
dc.citation.issue | 53 | - |
dc.citation.beginningpage | 47715 | - |
dc.citation.endingpage | 47722 | - |
dc.citation.publicationname | RSC ADVANCES | - |
dc.identifier.doi | 10.1039/c6ra07527d | - |
dc.contributor.localauthor | Seo, Myungeun | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordPlus | FRAGMENTATION TRANSFER POLYMERIZATION | - |
dc.subject.keywordPlus | MICROPHASE SEPARATION | - |
dc.subject.keywordPlus | BLOCK-COPOLYMERS | - |
dc.subject.keywordPlus | MACROMOLECULAR ARCHITECTURES | - |
dc.subject.keywordPlus | DISPERSION POLYMERIZATION | - |
dc.subject.keywordPlus | RADICAL POLYMERIZATION | - |
dc.subject.keywordPlus | MICELLES | - |
dc.subject.keywordPlus | POLYSTYRENE | - |
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