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Synthesis of poly(ethyl acrylate) by single electron transfer-degenerative chai...
Coelho, Jorge F. J.; Carvalho, Erica Y.; Marques, Dina S.; Popov, Anatoliy V.; Percec, Virgil; Gonçalves, Pedro M. F. O.; Gil, M. H.Living radical polymerization of ethyl acrylate was achieved by single-electron-transfer/degenerative-chain transfer mediated living radical polymerization in water catalyzed by sodium dithionite. The plots of number-average molecular weight versus conversion and ln[M]0/[M] versus time are linear, indicating a controlled polymerization. This method leads to the preparation of alpha,omega-di(iodo)poly(ethyl acry...
Synthesis of Poly(lauryl acrylate) by Single-Electron Transfer/Degenerative Cha...
Coelho, Jorge F. J.; Carvalho, Erica Y.; Marques, Dina S.; Popov, Anatoliy V.; Goncalves, Pedro M.; Gil, Maria H.Living radical polymerization of lauryl acrylate was achieved by SET/DTLRP in water catalyzed by sodium dithionite. The work describes the synthesis of a highly hydrophobic and polar monomer in aqueous medium. The plots of versus conversion and ln[M]0/[M] versus time are linear, indicating a controlled polymerization. This method leads to alpha,omega-diiodopoly(lauryl acrylate)s that can be further functionali...
Characterization of suspension poly(vinyl chloride) resins and narrow polystyre...
Coelho, Jorge F. J.; Gonçalves, Pedro M. F. O.; Miranda, Dionísio; Gil, M. H.This work reports the utilization of a multi-detector size chromatography for the characterization of poly(vinyl chloride) (PVC) resins prepared by suspension polymerization in the range of temperatures between 21 and 75 °C. The chromatography equipment offers the possibility of analyzing the samples in terms of their absolute molecular mass using a combination of three detectors (TriSEC): right angle light sca...
Processability and characterization of poly(vinyl chloride)-b-poly(n-butyl acry...
Coelho, Jorge F. J.; Carreira, Mafalda; Gonçalves, Pedro M. O. F.; Popov, Anatoliy V.; Gil, Maria H.This work reports the synthesis and processing of a new flexible material based on PVC produced by living radical polymerization. The synthesis was carried out in a two-step process. In the first step the macroinitiator alpha, omega-di(iodo)poly(butyl acrylate) [alpha, omega-di(iodo)PBA] was synthesized in water by single electron transfer/degenerative chain transfer mediated living radical polymerization (SET-...
Single electron transfer-degenerative chain transfer living radical polymerizat...
Coelho, Jorge F. J.; Silva, Ana M. F. P.; Popov, Anatoliy V.; Percec, Virgil; Abreu, Mariana V.; Gonçalves, Pedro M. O. F; Gil, M. H.Living radical polymerization of n-butyl acrylate was achieved by single electron transfer/degenerative-chain transfer mediated living radical polymerization in water catalyzed by sodium dithionate. The plots of number-average molecular weight versus conversion and ln[M]0/[M] versus time are linear, indicating a controlled polymerization. This methodology leads to the preparation of alpha,omega-di(iodo) poly (b...
Synthesis of poly(vinyl chloride)-b-poly(n-butyl acrylate)-b-poly(vinyl chlorid...
Coelho, Jorge F. J.; Silva, Ana M. F. P.; Popov, Anatoliy V.; Percec, Virgil; Abreu, Mariana V.; Gonçalves, Pedro M. O. F.; Gil, M. H.The synthesis of a block copolymer poly(vinyl chloride)-b-poly(n-butyl acrylate)-b-poly(vinyl chloride) is reported. This new material was synthesized by single-electron-transfer/degenerative-chain-transfer-mediated living radical polymerization (SET-DTLRP) in two steps. First, a bifunctional macroinitiator of alpha,omega-di(iodo)poly (butyl acrylate) [alpha,omega-di(iodo)PBA] was synthesized by SET-DTLRP in wa...
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