1973
DOI: 10.1002/app.1973.070170920
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Styrene–divinylbenzene copolymers. Construction of porosity in styrene divinylbenzene matrices

Abstract: synopsisExperimental data are presented describing the formation of porosity in styrene-divinylbenzene copolymers as a function of the organic components present during the suspension polymerization. The reaction system contains a mixture of diluents such as toluene and hexane, which results in matrices that differ significantly in pore structure from the porous resins so far known. From these data a model of the physical structure is proposed.

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Cited by 200 publications
(99 citation statements)
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“…These results are in accordance with the literature on macroporous 4-vinylpyridine-divinylbenzene [6,8,9]. Comparison of the pore volume of 4-vinylpyridine-divinylbenzene from this study with the pore volume of styrene-divinylbenzene [8,[10][11][12][13] from earlier studies showed that porosity controlling parameters, i.e., nature and amount of diluent and amount of cross-linking monomer changed the porosity of the two copolymers similarly and differently. The differences were the following: i) in general, the diluents create more pore volume in 4-vinylpyridine-divinylbenzene than in styrene-divinylbenzene, as illustrated in Fig.…”
Section: Resultssupporting
confidence: 91%
See 1 more Smart Citation
“…These results are in accordance with the literature on macroporous 4-vinylpyridine-divinylbenzene [6,8,9]. Comparison of the pore volume of 4-vinylpyridine-divinylbenzene from this study with the pore volume of styrene-divinylbenzene [8,[10][11][12][13] from earlier studies showed that porosity controlling parameters, i.e., nature and amount of diluent and amount of cross-linking monomer changed the porosity of the two copolymers similarly and differently. The differences were the following: i) in general, the diluents create more pore volume in 4-vinylpyridine-divinylbenzene than in styrene-divinylbenzene, as illustrated in Fig.…”
Section: Resultssupporting
confidence: 91%
“…The pores are formed by the following mechanism [7,[10][11][12]. As the polymerization progresses phase separation takes place between polymer phase and the surrounding liquid comprising of diluent and un-reacted monomers.…”
Section: Resultsmentioning
confidence: 99%
“…SEM is the technique employed for studying the shape, size and morphological features of the polymers in beaded form [37][38][39]. The SEM photographs of BH functionalized MBA-DVB Cu(II) and Ni(II) metal complexes are shown in Fig.…”
Section: Scanning Electron Microscopymentioning
confidence: 99%
“…Entre esses estão a concentração do agente de reticulação, a relação entre a quantidade de diluente e de monômero (grau de diluição) e a afinidade do polímero pelo solvente, ou seja, o poder solvatante do diluente. A combinação desses fatores torna possível a obtenção de estruturas variadas, com a porosidade desejada para um determinado fim [84][85][86][87][88][89][90][91][92][93][94][95][96][97][98][99] . A porosidade, o grau de ligações cruzadas e o tamanho das partículas do suporte influenciarão diretamente a velocidade da reação de extração, já que se trata de um processo controlado pela difusão da solução iônica através da matriz polimérica.…”
Section: Revisão Bibliográficaunclassified