influência das condições reacionais nas características de copolímeros de metacrilato de metila e divinilbenzeno obtidos por polimerização em suspensão influence from the reaction conditions on the characteristics of methyl methacrylate-divinylbenzene copolymers obtained by suspension polymerization
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ID: 181460
2004
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Abstract
Foram sintetizados copolímeros esféricos e porosos à base de metacrilato de metila e divinilbenzeno através de polimerização em suspensão aquosa utilizando metil-etil-cetona (MEK) e ciclo-hexano (CH) como diluentes. Diferentes estruturas morfológicas foram obtidas através da modificação dos parâmetros reacionais tais como teor de divinilbenzeno e razão MEK/CH. Os copolímeros foram caracterizados por porosimetria de mercúrio, análise de área específica, densidade aparente e microscopia ótica. Foram obtidas estruturas macroporosas com os teores mais altos do DVB e do diluente não-solvatante (CH).
Spherical and porous copolymers based on methyl methacrylate and divinylbenzene were synthesized by aqueous suspension polymerization using methyl-ethyl-ketone (MEK) and cyclohexane (CH) as diluents. Different morphological structures were obtained by modifying the reaction parameters, such as divinylbenzene content and MEK/CH ratio. The copolymers were characterized by several techniques: mercury porosimetry, specific superficial area analyzer, apparent density and optical microcopy. Macroporous structures were obtained when using high content of DVB and of nonsolvatant diluent (CH).
Spherical and porous copolymers based on methyl methacrylate and divinylbenzene were synthesized by aqueous suspension polymerization using methyl-ethyl-ketone (MEK) and cyclohexane (CH) as diluents. Different morphological structures were obtained by modifying the reaction parameters, such as divinylbenzene content and MEK/CH ratio. The copolymers were characterized by several techniques: mercury porosimetry, specific superficial area analyzer, apparent density and optical microcopy. Macroporous structures were obtained when using high content of DVB and of nonsolvatant diluent (CH).
| Reference Key |
cardoso2004polmerosinfluncia
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| Authors | ;Anelise M. Cardoso;Elizabete F. Lucas;Celina C. R. Barbosa |
| Journal | journal of the chemical society, perkin transactions 1 |
| Year | 2004 |
| DOI |
10.1590/S0104-14282004000300017
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| URL | |
| Keywords | Keywords not found |
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