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dc.contributor.CRUESPUNIVERSIDADE DE ESTADUAL DE CAMPINASpt_BR
dc.contributor.authoremailmarcelo.adf@gmail.compt_BR
dc.typeArtigopt_BR
dc.titleSynthesis And Applications Of Polystyrene-block-poly(n-vinyl-2-pyrrolidone) Copolymersen
dc.contributor.authorde Fariaspt_BR
dc.contributor.authorMarcelo Alexandre; Goncalvespt_BR
dc.contributor.authorMaria do Carmopt_BR
unicamp.authorGoncalves, Maria do Carmo] Univ Estadual Campinas UNICAMP, Inst Chem, Sao Paulo, SP, Brazilpt_BR
unicamp.author.external[de Farias, Marcelo Alexandrept_BR
dc.subjectAmphiphilic Block Copolymersen
dc.subjectControlled Radical Polymerizationen
dc.subjectSilica Nanoparticlesen
dc.subjectSilver Nanoparticlesen
dc.subjectSurface Modification Agenten
dc.description.abstractThis work describes the synthesis and applications of amphiphilic polystyrene-block-poly(N-vinyl-2-pyrrolidone) (PS-b-PVP) copolymers as a silver and silica nanoparticle surface modification agent. The synthesis of PS-b-PVP was carried out using controlled/living radical polymerization techniques. The synthesis of the block copolymers was confirmed by gel permeation chromatography and hydrogen nuclear magnetic resonance, presenting a polydispersity index of around 1.4 and number average molecular weight ranging between 10,000-14,000 g mol(-1). The PS-b-PVP copolymers were applied as a silver nanoparticle (AgNP) stabilizing agent. These nanoparticles were produced by a single step and presented an 11 +/- 1 nm diameter. Furthermore, the PS-b-PVP copolymers were also applied as a silica nanoparticle (SiO2NP) surface modification agent. The SiO2NP were synthesized by the Stober method presenting a 72 +/- 9 nm diameter. The SiO2NP surface modification by adsorption of PS-b-PVP caused the formation of a 5 +/- 1 nm thick polymeric layer, providing the SiO2NP with a hydrophobic surface character. The structural and chemical characteristics shown by PS-b-PVP copolymers highlights their versatility for several applications, such as: water-in-oil emulsifier, stabilizing or coupling agents between inorganic particles and polymeric matrices.en
dc.relation.ispartofPolimeros-Ciencia e tecnologiapt_BR
dc.publisherAssociação Brasileira de Polímerospt_BR
dc.publisherSão Carlospt_BR
dc.date.issued2016pt_BR
dc.date.monthofcirculationjan-fevpt_BR
dc.identifier.citationPolimeros-ciencia E Tecnologia. Associação Brasileira De Polímeros, v. 26, p. 1 - 10, 2016.pt_BR
dc.language.isoEnglishpt_BR
dc.description.volume26pt_BR
dc.description.issuenumber1pt_BR
dc.description.firstpage1pt_BR
dc.description.lastpage10pt_BR
dc.rightsabertopt_BR
dc.sourceWOSpt_BR
dc.identifier.issn0104-1428pt_BR
dc.identifier.wosidWOS:000376023600002pt_BR
dc.identifier.doi10.1590/0104-1428.2066pt_BR
dc.identifier.urlhttp://www.scielo.br/scielo.php?script=sci_arttext&pid=S0104-14282016000100002pt_BR
dc.description.sponsorshipPETROBRAS-CENPESpt_BR
dc.description.sponsorshipBrazilian agency FAPESP (FAPESP) [2010/17804-7]pt_BR
dc.description.sponsorshipNational Institute of Science, Technology and Innovation in Complex Functional Materials (Inomat/INCT) [FAPESP 2008/57867-8, CNPq 573644/2008-0]pt_BR
dc.description.sponsorshipCAPESpt_BR
dc.description.sponsorship1Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)pt_BR
dc.description.sponsorship1Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)pt_BR
dc.description.sponsorship1Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)pt_BR
dc.description.sponsorship1Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)pt_BR
dc.date.available2017-11-13T13:56:57Z-
dc.date.accessioned2017-11-13T13:56:57Z-
dc.description.provenanceMade available in DSpace on 2017-11-13T13:56:57Z (GMT). No. of bitstreams: 1 000376023600002.pdf: 2699576 bytes, checksum: 5fd3aad1ec8d18ce3b05328350f7f706 (MD5) Previous issue date: 2016en
dc.identifier.urihttp://repositorio.unicamp.br/jspui/handle/REPOSIP/329973-
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