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Sinteza poroznog poli(metilmetakrilata)

dc.creatorNikolić, Ljubiša
dc.creatorStanković, Miroslav
dc.creatorNikolić, Vesna
dc.creatorTodorović, Zoran
dc.creatorVuković, Zorica
dc.date.accessioned2019-01-30T17:14:19Z
dc.date.available2019-01-30T17:14:19Z
dc.date.issued2006
dc.identifier.issn1450-6734
dc.identifier.urihttp://cer.ihtm.bg.ac.rs/handle/123456789/254
dc.description.abstractA synthesis of porous poly(methylmetacrylate) in suspension has been done in this paper. Ethylene glycol dimethacrylate has been used as a crosslinker poly(vinyl-pyrrolidone) as a protective colloid, and a benzoyl peroxide as an initiator. The synthesized polymer has been investigated by Carlo Erba 2000 to determine it's porosity, specific surface and pore size distribution. These parameters depend on concentrations of crosslinkers and the inert pores-making agent ethyl acetate. The porosity of poly(methylmetacrylate) increases proportionally with ethyl acetate concentration in the reaction mixture, reaching the maximum value of 0.614 cm3/g (corresponding to the maximum ethyl acetate concentration). Pore size distribution points the pores with diameters between 1 - 5 μm and specific surface of 17.187 m2/g as the most abundant ones. The synthesized polymers have been used for polymer–analog reactions, converting methyl-ester groups into acyl-hydrazine ones and these into acyl-azide groups. These reactions served as a tool to immobilize enzyme amylase. So, the porous poly(methylmetacrylate) has been used as the enzyme's inert support.en
dc.description.abstractU ovom radu je izvršena sinteza poroznog poli(metilmetakrilata) u suspenziji pri čemu je etilenglikol dimetakrilat iskorišćen kao umreživač poli(vinilpirolidon) kao zaštitni koloid, a benzoil peroksid kao inicijator. Dobijenom polimeru je na uređaju Carlo Erba 2000 određena poroznost specifična površina i raspodela veličina pora. Ove veličine zavise od koncentracije umreživača i koncentracije inertne komponente za stvaranje pora - etilacetata. Poroznost poli(metilmetakrilata) se uvećava sa povećanjem koncentracije etilacetata u reakcionoj smeši i za najveću koncentraciju dostiže 0,614 cm3/g. Raspodela veličina pora pokazuje da su najzastupljenije pore prečnika 0,1 do 5 μm, a specifična površina dostiže 17,187 m2/g. Na dobijenom polimeru izvedene su polimer-analogne reakcije kojima su metilestarske grupe prevedene u acil-hidrazinske, a ove u acil-azidne grupe. Preko njih je imobilisan enzim amilaza, tako da je ovaj porozni poli(metilmetakrilat) iskorišćen kao inertni nosač enzima.sr
dc.publisherDruštvo inženjera plastičara i gumara, Beograd
dc.relationProject MESTD, br. TR-6708B
dc.rightsopenAccess
dc.sourceSvet polimera
dc.subjectenzyme amylaseen
dc.subjectimmobilizationen
dc.subjectinert supporten
dc.subjectpoly(methylmetacrylate)en
dc.subjectpore size distributionen
dc.subjectporosityen
dc.subjectspecific surfaceen
dc.subjectsynthesisen
dc.subjectenzim amilazasr
dc.subjectimobilizacijasr
dc.subjectinertni nosačsr
dc.subjectpoli(metilmetakrilat)sr
dc.subjectporoznostsr
dc.subjectraspodela veličina porasr
dc.subjectsintezasr
dc.subjectspecifična površinasr
dc.titleSynthesis of porous poly(methylmetacrylate)en
dc.titleSinteza poroznog poli(metilmetakrilata)sr
dc.typearticle
dc.rights.licenseARR
dcterms.abstractНиколић, Љубиша; Вуковић, Зорица; Тодоровић, Зоран; Николић, Весна; Станковић, Мирослав; Синтеза порозног поли(метилметакрилата); Синтеза порозног поли(метилметакрилата);
dc.citation.volume9
dc.citation.issue3
dc.citation.spage73
dc.citation.epage76
dc.citation.other9(3): 73-76
dc.identifier.rcubConv_503
dc.type.versionpublishedVersion


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