Graft-polymerization of phosphine functionalized monomers onto silica particles View Full Text


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Article Info

DATE

2002-08

AUTHORS

Omar Urzúa-Sánchez, Angel Licea-Claveríe, Jenomelín González, Leonel Cota, Felipe Castillón

ABSTRACT

Triphenylphosphine (PPh3), a well-known reagent and catalyst, was successfully grafted onto silica particles in a functionalized polymer form using 4-(diphenylphosphinyl)styrene as a monomer. 4-(Diisopropylphosphinyl)styrene and 4-(ditertbutylphosphinyl)styrene were also grafted onto silica in the form of a functionalized polymer and oligomer, respectively. Two methods were used: A) Copolymerization of phosphine-functionalized monomers with a vinyl compound previously attached to silica; and B) Polymerization of phosphine-functionalized monomers using a radical initiator previously attached to silica. The resulting materials were characterized by FTIR, DTA-TGA, specific surface area (SBET) and XPS. The best results in grafting percent and molecular weight of the grafts were obtained by method B. More... »

PAGES

39-46

Identifiers

URI

http://scigraph.springernature.com/pub.10.1007/s00289-002-0070-7

DOI

http://dx.doi.org/10.1007/s00289-002-0070-7

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1031386102


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