209550-24-3Relevant academic research and scientific papers
Immobilization of oligostyrene-prolinol conjugates into polystyrene via electrospinning and applications of these fibers in catalysis
Roeben, Caren,Stasiak, Michael,Janza, Birgit,Greiner, Andreas,Wendorff, Joachim H.,Studer, Armido
scheme or table, p. 2163 - 2168 (2009/04/06)
This paper reports the synthesis of prolinol-oligostytrene conjugates and their immobilization into a polystyrene matrix by using the electrospinning process. Via this approach fibers with a large surface area (fiber diameter of 1.2 μm) containing the pro
Multi-armed, TEMPO-functionalized unimolecular initiators for starburst dendrimer synthesis via stable free radical polymerisation. 2. Tris (1,3,5)benzyloxy unimers
Ghani, Mohmad Asri Abd,Abdallah, Dalia,Kazmaier, Peter M.,Keoshkerian, Barkev,Buncel, Erwin
, p. 1403 - 1412 (2007/10/03)
The synthesis of the trifunctionalized TEMPO-modified unimolecular initiators, unimers I, II, and III is described. Unimer I was prepared via an SN2 type Williamson ether coupling of 1,3,5-tris(iodomethyl)benzene with a TEMPO-containing ethylbenzene hydroxy derivative. The synthesis of unimer II, however, was accomplished through SN1 reaction of 1,3,5-tris(bromomethyl)benzene with the hydroxy-ethylbenzene TEMPO derivative in the presence of silver triflate. Synthesis of unimer III started from phloroglucinol and an SNAr reaction with 1-fluoro-4-nitrobenzene, followed by reduction to the amino compound and Schiff base formation with the TEMPO-derivatized aromatic aldehyde. Stable free radical polymerisation (SFRP) of styrene and acetoxystyrene with unimer I are also described with molecular weights and polydispersities reported. It is concluded that the SFRP of styrene with a triradical initiator meets the requirements of a living system.
