DC Field | Value | Language |
---|---|---|
dc.contributor.author | Park, Jongmin | ko |
dc.contributor.author | Ahn, Nam Young | ko |
dc.contributor.author | Seo, Myungeun | ko |
dc.date.accessioned | 2020-08-05T08:55:28Z | - |
dc.date.available | 2020-08-05T08:55:28Z | - |
dc.date.created | 2020-07-27 | - |
dc.date.created | 2020-07-27 | - |
dc.date.created | 2020-07-27 | - |
dc.date.issued | 2020-07 | - |
dc.identifier.citation | POLYMER CHEMISTRY, v.11, no.26, pp.4335 - 4343 | - |
dc.identifier.issn | 1759-9954 | - |
dc.identifier.uri | http://hdl.handle.net/10203/275718 | - |
dc.description.abstract | We report polymerization-induced self-assemblyviacontrolled cross-linking copolymerization to produce robust block copolymer micelles with spherical, elongated, and branched shapes. Reversible addition-fragmentation chain transfer (RAFT) copolymerization of styrene and divinylbenzene (DVB) or 1,2-bismaleimidoethane (BMI) as a cross-linker in the presence of a polylactide macro-chain transfer agent (PLA-CTA) was performed in acetonitrile, which is a non-solvent to polystyrene (PS). The addition of the cross-linker accelerates the copolymerization compared to styrene homopolymerization, which leads to the formation of block polymer micelles within a shorter time frame, followed byin situinter-chain cross-linking. The micelles are virtually identical to the core cross-linked star polymer consisting of a cross-linked polystyrenic core surrounded by a PLA corona. Molecular weights up to more than 1000 kg mol(-1)could be obtained with relatively narrow dispersity values (1.1-1.4). In the case of copolymerization with DVB, the micellar morphology changes from spherical to elongated and branched shapes with increasing conversion. The size and morphology of the micelles are retained in a good solvent to PS, suggesting that thein situcross-linking effectively stabilizes the micellar core. BMI undergoes alternating copolymerization with styrene in the early stage of polymerization and yields spherical micelles exclusively, because the densely cross-linked core seems to prevent further morphological transition. | - |
dc.language | English | - |
dc.publisher | ROYAL SOC CHEMISTRY | - |
dc.title | Cross-linking polymerization-induced self-assembly to produce branched core cross-linked star block polymer micelles | - |
dc.type | Article | - |
dc.identifier.wosid | 000545817400012 | - |
dc.identifier.scopusid | 2-s2.0-85093360895 | - |
dc.type.rims | ART | - |
dc.citation.volume | 11 | - |
dc.citation.issue | 26 | - |
dc.citation.beginningpage | 4335 | - |
dc.citation.endingpage | 4343 | - |
dc.citation.publicationname | POLYMER CHEMISTRY | - |
dc.identifier.doi | 10.1039/d0py00515k | - |
dc.contributor.localauthor | Seo, Myungeun | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordPlus | RAFT DISPERSION POLYMERIZATION | - |
dc.subject.keywordPlus | DIBLOCK COPOLYMER NANOPARTICLES | - |
dc.subject.keywordPlus | NANO-OBJECTS | - |
dc.subject.keywordPlus | METHACRYLATE | - |
dc.subject.keywordPlus | EFFICIENT | - |
dc.subject.keywordPlus | MORPHOLOGIES | - |
dc.subject.keywordPlus | VESICLES | - |
dc.subject.keywordPlus | ROUTE | - |
dc.subject.keywordPlus | WORMS | - |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.