Thermoresponsive Polycation-Stabilized Nanoparticles through PISA. Control of Particle Morphology with a Salt

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dc.contributor University of Helsinki, Polymers en
dc.contributor University of Helsinki, Department of Chemistry en
dc.contributor University of Helsinki, Department of Chemistry en
dc.contributor.author Baddam, Vikram
dc.contributor.author Valinen, Lauri
dc.contributor.author Tenhu, Heikki
dc.date.accessioned 2021-06-11T03:19:01Z
dc.date.available 2021-06-11T03:19:01Z
dc.date.issued 2021-05-11
dc.identifier.citation Baddam , V , Valinen , L & Tenhu , H 2021 , ' Thermoresponsive Polycation-Stabilized Nanoparticles through PISA. Control of Particle Morphology with a Salt ' , Macromolecules , vol. 54 , no. 9 , pp. 4288-4299 . https://doi.org/10.1021/acs.macromol.0c02771 en
dc.identifier.issn 0024-9297
dc.identifier.other PURE: 164857646
dc.identifier.other PURE UUID: f2e88e47-00e1-48e7-9ed5-97c5a8882ffb
dc.identifier.other WOS: 000651530900035
dc.identifier.other ORCID: /0000-0001-5327-9066/work/95262347
dc.identifier.other ORCID: /0000-0001-5957-4541/work/95317709
dc.identifier.uri http://hdl.handle.net/10138/330872
dc.description.abstract Poly [(vinylbenzyl) trimethylammonium chloride] (PVBTMAC) has been used as a stabilizer in the polymerization-induced self-assembly polymerizations of diacetone acrylamide (DAAM). A whole spectrum of particle morphologies was obtained simply by adjusting the ionic strength of the reaction mixtures; no dilution of the cationic charges with noncharged comonomers or with noncharged polymers was needed. In addition to the ionic strength, the effects of solid content and the length of the PDAAM block on the morphologies of the particles were studied in detail. The experiments are a continuation to previous studies on solution properties of PVBTMAC. It has been shown earlier that the solubility of the polycation may be tuned with counterions. Hydrophobic triflate ions induce an upper critical solution temperature behavior. In the present case, the chains bound to hydrophobic cores of the particles show either a one-step phase separation in aqueous triflate solutions or under certain conditions, a two-step transition. The step-wise transition is typical for responsive polymers with limited mobility. en
dc.format.extent 12
dc.language.iso eng
dc.relation.ispartof Macromolecules
dc.rights en
dc.subject COPOLYMER NANO-OBJECTS en
dc.subject ALCOHOLIC DISPERSION POLYMERIZATION en
dc.subject AMPHIPHILIC BLOCK-COPOLYMERS en
dc.subject ONE-POT SYNTHESIS en
dc.subject DIBLOCK COPOLYMER en
dc.subject EMULSION POLYMERIZATION en
dc.subject MULTIPLE MORPHOLOGIES en
dc.subject SOLUTION BEHAVIOR en
dc.subject IN-SITU en
dc.subject ASSEMBLIES en
dc.subject 116 Chemical sciences en
dc.title Thermoresponsive Polycation-Stabilized Nanoparticles through PISA. Control of Particle Morphology with a Salt en
dc.type Article
dc.description.version Peer reviewed
dc.identifier.doi https://doi.org/10.1021/acs.macromol.0c02771
dc.type.uri info:eu-repo/semantics/other
dc.type.uri info:eu-repo/semantics/publishedVersion
dc.contributor.pbl
dc.contributor.pbl

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