Publication
SEC/MALLS measurement of the branched structure of methyl methacrylate + ethylene glycol dimethacrylate copolymers synthesized by atom transfer radical polymerization
| dc.contributor.author | Trigo, Ivone | |
| dc.contributor.author | Gonçalves, Miguel A.D. | |
| dc.contributor.author | Dias, Rolando | |
| dc.contributor.author | Costa, Mário Rui | |
| dc.date.accessioned | 2008-09-10T13:12:26Z | |
| dc.date.available | 2008-09-10T13:12:26Z | |
| dc.date.issued | 2008 | |
| dc.description.abstract | In the last few years, atom transfer radical polymerization (ATRP) of acrylate and methacrylate monomers in the presence of a small amount of cross-linker has been investigated in order to produce branched polymers and gels with applications in microelectronics, coatings industries or biomedicine (Wang and Zhu, 2005; Gao et al., 2007). In this context, it is being explored the production by ATRP of branched/crosslinked polymers with a lower degree of heterogeneity than that obtained by conventional free radical polymerization (FRP). This work reports an experimental study on the ATRP of methyl methacrylate (MMA) + ethylene glycol dimethacrylate (EGDMA) initiated by MBPA (methyl -bromophenylacetate) and mediated by copper bromide (CuBr) ligated with HMTETA (1,1,4,7,10,10- hexamethyltriethylenetetramine). The synthesized copolymers were analyzed by size exclusion chromatography (SEC) with simultaneous detection of refractive index (RI) and multi-angle laser light scattering (MALLS) signals. Important details of the molecular architecture of these materials can therefore be measured, namely absolute molecular weights and z-average radius of gyration. Different experimental runs were performed in order to investigate the influence of the operating conditions (e.g. temperature and initial molar ratios MMA/EGDMA/MBPA/CuBr/HMTETA) on the structure of the products. | |
| dc.description.sponsorship | FCT | en |
| dc.event.date | 4-6 September, 2008 | en |
| dc.event.location | Braga, Portugal | en |
| dc.event.title | Chempor2008, 10th International Chemical and Biological Engineering Conference | en |
| dc.event.type | Conferência | en |
| dc.identifier.citation | Trigo, Ivone; Gonçalves, Miguel; Dias, Rolando; Costa, Mário (2008). SEC/MALLS measurement of the branched structure of methyl methacrylate + ethylene glycol dimethacrylate copolymers synthesized by atom transfer radical polymerization. In 10th International Chemical and Biological Engineering Conference - CHEMPOR. Braga. p.102-107. ISBN 978-972-97810-3-2 | en |
| dc.identifier.uri | http://hdl.handle.net/10198/799 | |
| dc.language.iso | eng | en |
| dc.pagination | 102-107 | en |
| dc.peerreviewed | yes | en |
| dc.publisher | Universidade do Minho | en |
| dc.relation | Inception and design of non-linear free radical polymerization processes in semi-batch reactor | |
| dc.subject | Branching | en |
| dc.subject | Crosslinking | en |
| dc.subject | Atom-transfer | en |
| dc.subject | Molecular weight | en |
| dc.subject | Radius of gyration | en |
| dc.title | SEC/MALLS measurement of the branched structure of methyl methacrylate + ethylene glycol dimethacrylate copolymers synthesized by atom transfer radical polymerization | en |
| dc.type | conference object | |
| dspace.entity.type | Publication | |
| oaire.awardTitle | Inception and design of non-linear free radical polymerization processes in semi-batch reactor | |
| oaire.awardURI | info:eu-repo/grantAgreement/FCT/POCI/POCI%2FEQU%2F44784%2F2002/PT | |
| oaire.awardURI | info:eu-repo/grantAgreement/FCT/POCI/POCI%2FEQU%2F60483%2F2004/PT | |
| oaire.awardURI | info:eu-repo/grantAgreement/FCT/3599-PPCDT/PPCDT%2FEQU%2F60483%2F2004/PT | |
| oaire.fundingStream | POCI | |
| oaire.fundingStream | POCI | |
| oaire.fundingStream | 3599-PPCDT | |
| person.familyName | Dias | |
| person.givenName | Rolando | |
| person.identifier.ciencia-id | 8417-4D84-973B | |
| person.identifier.orcid | 0000-0001-7369-382X | |
| person.identifier.rid | M-8552-2013 | |
| person.identifier.scopus-author-id | 7102885104 | |
| project.funder.identifier | http://doi.org/10.13039/501100001871 | |
| project.funder.identifier | http://doi.org/10.13039/501100001871 | |
| project.funder.identifier | http://doi.org/10.13039/501100001871 | |
| project.funder.name | Fundação para a Ciência e a Tecnologia | |
| project.funder.name | Fundação para a Ciência e a Tecnologia | |
| project.funder.name | Fundação para a Ciência e a Tecnologia | |
| rcaap.rights | openAccess | en |
| rcaap.type | conferenceObject | en |
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