Synthesis of Di- and tri-tertiary amine containing methacrylic monomers and their (Co)polymerization via RAFT
The synthesis, reversible addition-fragmentation chain transfer (RAFT) (co)polymerization, and aqueous phase behavior of three methacrylic monomers containing two or three pendent tertiary amine functional groups are described. Homopolymerizations were conducted with 1-methyi-1-cyanoethyl dithiobenz...
| Main Authors: | , |
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| Format: | Journal Article |
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2009
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| Online Access: | http://hdl.handle.net/20.500.11937/32000 |
| _version_ | 1848753540255711232 |
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| author | Yu, B. Lowe, Andrew |
| author_facet | Yu, B. Lowe, Andrew |
| author_sort | Yu, B. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | The synthesis, reversible addition-fragmentation chain transfer (RAFT) (co)polymerization, and aqueous phase behavior of three methacrylic monomers containing two or three pendent tertiary amine functional groups are described. Homopolymerizations were conducted with 1-methyi-1-cyanoethyl dithiobenzoate (CPDB) under bulk conditions following standard RAPT procedures. All three monomers, 1,3- bis(dimethylamino)propan-2-yl methaerylate (M1), l-(bis(3-(dimethylamino)propyl) amino)propan-2-yl methaerylate (M2), and 2-((2-(2-(dimethylamino)ethoxy)ethyl) methylamino)ethyl aerylate (M3), polymerized in a controlled manner as evidenced by the kinetic and molecular weight profiles. Homopolymerizations conducted at a lower ratio of CPDBrAIBN proceeded faster than those at a higher ratio. Subsequently, the facile eopolymerization behavior of M1 and M3 was demonstrated via the synthesis of a range of statistical copolymers with hexyl and lauryl methaerylate comonomers containing 10-90 mol % hydrophobic comonomer. Finally, the aqueoussolution characteristics of the M1-M3 homopolymers were briefly examined. All three homopolymers were shown to undergo phase transitions in aqueous media in response to changes in both temperature and pH. Specifically, 1 wt % solutions of polyMl were shown to possess an LCST of ~22 °C, that of polyM2 at ~33 °C, and for polyM3 the observed cloud point was ~63°C. Additionally, all homopolymers became hydrophobic and phase separated at high solution pH © 2009 Wiley Periodicals, Inc. |
| first_indexed | 2025-11-14T08:26:08Z |
| format | Journal Article |
| id | curtin-20.500.11937-32000 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T08:26:08Z |
| publishDate | 2009 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-320002017-09-13T15:17:09Z Synthesis of Di- and tri-tertiary amine containing methacrylic monomers and their (Co)polymerization via RAFT Yu, B. Lowe, Andrew The synthesis, reversible addition-fragmentation chain transfer (RAFT) (co)polymerization, and aqueous phase behavior of three methacrylic monomers containing two or three pendent tertiary amine functional groups are described. Homopolymerizations were conducted with 1-methyi-1-cyanoethyl dithiobenzoate (CPDB) under bulk conditions following standard RAPT procedures. All three monomers, 1,3- bis(dimethylamino)propan-2-yl methaerylate (M1), l-(bis(3-(dimethylamino)propyl) amino)propan-2-yl methaerylate (M2), and 2-((2-(2-(dimethylamino)ethoxy)ethyl) methylamino)ethyl aerylate (M3), polymerized in a controlled manner as evidenced by the kinetic and molecular weight profiles. Homopolymerizations conducted at a lower ratio of CPDBrAIBN proceeded faster than those at a higher ratio. Subsequently, the facile eopolymerization behavior of M1 and M3 was demonstrated via the synthesis of a range of statistical copolymers with hexyl and lauryl methaerylate comonomers containing 10-90 mol % hydrophobic comonomer. Finally, the aqueoussolution characteristics of the M1-M3 homopolymers were briefly examined. All three homopolymers were shown to undergo phase transitions in aqueous media in response to changes in both temperature and pH. Specifically, 1 wt % solutions of polyMl were shown to possess an LCST of ~22 °C, that of polyM2 at ~33 °C, and for polyM3 the observed cloud point was ~63°C. Additionally, all homopolymers became hydrophobic and phase separated at high solution pH © 2009 Wiley Periodicals, Inc. 2009 Journal Article http://hdl.handle.net/20.500.11937/32000 10.1002/pola.23281 restricted |
| spellingShingle | Yu, B. Lowe, Andrew Synthesis of Di- and tri-tertiary amine containing methacrylic monomers and their (Co)polymerization via RAFT |
| title | Synthesis of Di- and tri-tertiary amine containing methacrylic monomers and their (Co)polymerization via RAFT |
| title_full | Synthesis of Di- and tri-tertiary amine containing methacrylic monomers and their (Co)polymerization via RAFT |
| title_fullStr | Synthesis of Di- and tri-tertiary amine containing methacrylic monomers and their (Co)polymerization via RAFT |
| title_full_unstemmed | Synthesis of Di- and tri-tertiary amine containing methacrylic monomers and their (Co)polymerization via RAFT |
| title_short | Synthesis of Di- and tri-tertiary amine containing methacrylic monomers and their (Co)polymerization via RAFT |
| title_sort | synthesis of di- and tri-tertiary amine containing methacrylic monomers and their (co)polymerization via raft |
| url | http://hdl.handle.net/20.500.11937/32000 |