Results 21 to 30 of about 4,349 (291)
Revisiting molecular weight distribution of polystyrenes using adsorption highperformance thin-layer chromatography [PDF]
, 2013 A repeatable separation of polystyrenes according to MW, from 1920 to 520000 u.m.a, has been obtained under adsorption conditions using a method that comprises the use of Lichrospher HPTLC plates, and a controlled, isocratic elution with a 78:22 (v/v ...
Cebolla, Vicente L. +17 more
core +1 more source
Bio‐based vinylphenol family: Synthesis via decarboxylation of naturally occurring cinnamic acids and living radical polymerization for functionalized polystyrenes [PDF]
, 2020 A series of bio‐based vinylphenols or hydroxystyrenes is prepared by simple decarboxylation of various naturally occurring cinnamic acids such as o‐, m‐, and p‐coumaric; caffeic; ferulic; and sinapinic acids, which possess hydroxy groups and other ...
Masami Kamigaito +5 more
core +1 more source
Redox active dendronized polystyrenes equipped with peripheral triarylamines
Beilstein Journal of Organic Chemistry, 2014 Dendronized polystyrene having peripheral bromo groups was prepared from the dendronization of unfunctionalized polystyrene with dendritic diarylcarbenium ions bearing peripheral bromo groups using the “cation pool” method.
Toshiki Nokami +6 more
doaj +1 more source
Cationic polymerization of styrene using iron-containing ionic liquid catalysts in an aqueous dispersed medium [PDF]
PolímerosThis work aims to study the cationic miniemulsion polymerization of styrene catalyzed by iron-containing imidazolium-based ionic liquids. The polystyrenes had very high number-average molar mass around 1300 kg mol-1 at 85 °C, molar-mass dispersity close ...
Gabriel Victor Simões Dutra +5 more
doaj +2 more sources
Nanophotonics, 2021 Several fundamental research and applications in biomedicine and microfluidics often require controlled manipulation of suspended micro- and nanoscale particles.
Jamali Ramin +4 more
doaj +1 more source
Melt rheology of arborescent graft polystyrenes [PDF]
, 1998 Arborescent graft or comb-burst polymers are highly branched, high molecular weight polymers that are constructed from linear polymer chains by a cascade grafting process. The arborescent graft polystyrenes studied here were prepared by a "graft on graft"
Zoetelief, Wim F. +3 more
core +1 more source
THE REACTION OF POLYSTYRENES WITH BROMINE
, 1940 The quantitative determination of the absorption by polystyrenes of oxygen from benzoyl hydrogen peroxide yields low results in all cases. The action of bromine on polystyrenes is a function of the concentration. With relatively higher concentrations of
Léo Marion
core +1 more source
Advances in Materials Science and Engineering, 2012 This paper describes the synthesis of new electron-transporting styrene monomers and their corresponding polystyrenes all with a 2,4,6-triphenyl-1,3,5-triazine basic structure in the side group.
Beatrice Ch. D. Salert +5 more
doaj +1 more source
Adsorption of plant phenols by polystyrene resins
Acta Societatis Botanicorum Poloniae, 2014 Adsorption of nine plant phenols by nine polystyrene ion-exchange resins was investigated in an experimental model system. The phenols were adsorbed by Amberlite CG-120 more efficiently than any other acidically charged resins tested in this study.
Akiyoshi Fukushima +2 more
doaj +1 more source
Segmental Dynamics in Multicyclic Polystyrenes
, 2018 The segmental dynamics and the corresponding glass temperature, T, were investigated in a monocyclic and in the corresponding linear polystyrene as well as in a series of multicyclic polystyrenes, all with the same total molecular weight, with dielectric
Floudas, George +7 more
core +1 more source