A 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 grou...ps. These reactions served as a tool to immobilize enzyme amylase. So, the porous poly(methylmetacrylate) has been used as the enzyme's inert support.
U 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.
Keywords:
enzyme amylase / immobilization / inert support / poly(methylmetacrylate) / pore size distribution / porosity / specific surface / synthesis / enzim amilaza / imobilizacija / inertni nosač / poli(metilmetakrilat) / poroznost / raspodela veličina pora / sinteza / specifična površina
TY - JOUR
AU - Nikolić, Ljubiša
AU - Stanković, Miroslav
AU - Nikolić, Vesna
AU - Todorović, Zoran
AU - Vuković, Zorica
PY - 2006
UR - https://cer.ihtm.bg.ac.rs/handle/123456789/254
AB - A 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.
AB - U 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.
PB - Društvo inženjera plastičara i gumara, Beograd
T2 - Svet polimera
T1 - Synthesis of porous poly(methylmetacrylate)
T1 - Sinteza poroznog poli(metilmetakrilata)
VL - 9
IS - 3
SP - 73
EP - 76
UR - https://hdl.handle.net/21.15107/rcub_cer_254
ER -
@article{
author = "Nikolić, Ljubiša and Stanković, Miroslav and Nikolić, Vesna and Todorović, Zoran and Vuković, Zorica",
year = "2006",
abstract = "A 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., U 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.",
publisher = "Društvo inženjera plastičara i gumara, Beograd",
journal = "Svet polimera",
title = "Synthesis of porous poly(methylmetacrylate), Sinteza poroznog poli(metilmetakrilata)",
volume = "9",
number = "3",
pages = "73-76",
url = "https://hdl.handle.net/21.15107/rcub_cer_254"
}
Nikolić, L., Stanković, M., Nikolić, V., Todorović, Z.,& Vuković, Z.. (2006). Synthesis of porous poly(methylmetacrylate). in Svet polimera
Društvo inženjera plastičara i gumara, Beograd., 9(3), 73-76.
https://hdl.handle.net/21.15107/rcub_cer_254
Nikolić L, Stanković M, Nikolić V, Todorović Z, Vuković Z. Synthesis of porous poly(methylmetacrylate). in Svet polimera. 2006;9(3):73-76.
https://hdl.handle.net/21.15107/rcub_cer_254 .
Nikolić, Ljubiša, Stanković, Miroslav, Nikolić, Vesna, Todorović, Zoran, Vuković, Zorica, "Synthesis of porous poly(methylmetacrylate)" in Svet polimera, 9, no. 3 (2006):73-76,
https://hdl.handle.net/21.15107/rcub_cer_254 .
