Controlled Synthesis of Block Copolymers Containing N-isopropylacrylamide by Reversible Addition-Fragmentation Chain-Transfer (RAFT) Polymerization
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| Format: | Artículo científico |
| Language: | en |
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Sociedad Química de México
2011
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| _version_ | 1876480011178868736 |
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| author | Alejandro Vega-Rios |
| author_facet | Alejandro Vega-Rios |
| contents | Controlled Synthesis of Block Copolymers Containing N-isopropylacrylamide by Reversible Addition-Fragmentation Chain-Transfer (RAFT) Polymerization Alejandro Vega-Rios Angel Licea-Claveríe Multidisciplinaria (Ciencias Naturales y Exactas) RAFT poly(St) poly(MMA) poly(HEMA) poly(NIPAAm) Synthesis of diblock copolymers of N-isopropylacrylamide with n-hexyl acrylate, styrene, methyl methacrylate and 2-hydroxyethyl methacrylate, were carried out by using a sequential "living" polymerization method in the presence of chain transfer agent (CTA) 4-Cyano-4-(phenylcarbonothioylthio)pentanoic acid. The block copolymer composition and molecular weight could be well controlled while maintaining a narrow molecular weight distribution. The block copolymers were characterized by 1H NMR, GPC with MALLS detection and DSC. The molar ratio CTA/Initiator rather than the sequence of monomer addition is the key parameter for achieving the desired materials. We report the first synthesis of poly(HEMA)-bpoly(NIPAAm) with a polydispersity index (IPD) of 1.20 by RAFT. 2011 artículo científico 1870-249X https://www.redalyc.org/articulo.oa?id=47521267006 en http://www.redalyc.org/revista.oa?id=475 Journal of the Mexican Chemical Society application/pdf Sociedad Química de México Journal of the Mexican Chemical Society (México) Num.1 Vol.55 |
| format | Artículo científico |
| id | redalyc_47521267006 |
| institution | Redalyc |
| language | en |
| publishDate | 2011 |
| publisher | Sociedad Química de México |
| spellingShingle | Controlled Synthesis of Block Copolymers Containing N-isopropylacrylamide by Reversible Addition-Fragmentation Chain-Transfer (RAFT) Polymerization Alejandro Vega-Rios Multidisciplinaria (Ciencias Naturales y Exactas) RAFT poly(St) poly(MMA) poly(HEMA) poly(NIPAAm) Controlled Synthesis of Block Copolymers Containing N-isopropylacrylamide by Reversible Addition-Fragmentation Chain-Transfer (RAFT) Polymerization Alejandro Vega-Rios Angel Licea-Claveríe Multidisciplinaria (Ciencias Naturales y Exactas) RAFT poly(St) poly(MMA) poly(HEMA) poly(NIPAAm) Synthesis of diblock copolymers of N-isopropylacrylamide with n-hexyl acrylate, styrene, methyl methacrylate and 2-hydroxyethyl methacrylate, were carried out by using a sequential "living" polymerization method in the presence of chain transfer agent (CTA) 4-Cyano-4-(phenylcarbonothioylthio)pentanoic acid. The block copolymer composition and molecular weight could be well controlled while maintaining a narrow molecular weight distribution. The block copolymers were characterized by 1H NMR, GPC with MALLS detection and DSC. The molar ratio CTA/Initiator rather than the sequence of monomer addition is the key parameter for achieving the desired materials. We report the first synthesis of poly(HEMA)-bpoly(NIPAAm) with a polydispersity index (IPD) of 1.20 by RAFT. 2011 artículo científico 1870-249X https://www.redalyc.org/articulo.oa?id=47521267006 en http://www.redalyc.org/revista.oa?id=475 Journal of the Mexican Chemical Society application/pdf Sociedad Química de México Journal of the Mexican Chemical Society (México) Num.1 Vol.55 |
| title | Controlled Synthesis of Block Copolymers Containing N-isopropylacrylamide by Reversible Addition-Fragmentation Chain-Transfer (RAFT) Polymerization |
| topic | Multidisciplinaria (Ciencias Naturales y Exactas) RAFT poly(St) poly(MMA) poly(HEMA) poly(NIPAAm) |
| url | https://www.redalyc.org/articulo.oa?id=47521267006 |