Preparation of emulsifier-free polystyrene by conventional emulsion polymerization with a hydrolysable emulsifier
نویسندگان
چکیده
منابع مشابه
Preparation of Emulsifier-Free Polystyrene by Conventional Emulsion Polymerization with a Hydrolysable Emulsifier
An alkali-hydrolysable surfactant, (1-tetradecyloxycarbonylmethyl)trimethylammonium chloride, was used as an emulsifier for emulsion polymerization of styrene in water. The polymerization yielded a high molecular-weight polymer almost quantitatively. Addition of a small amount of NaOH to the resulting latex solution precipitated the polymer immediately. Analysis of the centrifuged solid indicat...
متن کاملKinetics of Emulsifier-Free Emulsion Polymerization of Methyl Methacrylate
The influences of polymerization temperature, initiator and monomer concentrations, ionic strength of the aqueous phase, as well as ethylene glycol dimethacrylate (EGDM) comonomer, on the kinetics of the emulsifier-free emulsion polymerization of methyl methacrylate (MMA) and on the properties of the resulting poly(methy1 methacrylate) (PMMA) lattices were studied. The polymerizations were carr...
متن کاملEmulsifier-free emulsion polymerization produces highly charged, monodisperse particles for near infrared photonic crystals.
We have developed emulsifier-free, emulsion polymerization recipes for the synthesis of highly charged, monodisperse latex particles of diameters between 500 and 1100 nm. These latexes consist of poly[styrene-(co-2-hydroxyethyl methacrylate)] spherical particles whose surfaces are functionalized with sulfate and carboxylic acid groups. These highly charged, monodisperse particles readily self-a...
متن کاملPreparation of Inert Polystyrene Latex Particles as MicroRNA Delivery Vectors by Surfactant-Free RAFT Emulsion Polymerization.
We present the preparation of 11 nm polyacrylamide-stabilized polystyrene latex particles for conjugation to a microRNA model by surfactant-free RAFT emulsion polymerization. Our synthetic strategy involved the preparation of amphiphilic polyacrylamide-block-polystyrene copolymers, which were able to self-assemble into polymeric micelles and "grow" into polystyrene latex particles. The surface ...
متن کاملEmulsion preparation using beta-cyclodextrin and its derivatives acting as an emulsifier.
The preparation and formation mechanism of n-hexadecane/water emulsions using natural beta-cyclodextrin (beta-CD) and chemically modified beta-CDs (triacylated beta-cyclodextrins) as an emulsifier were investigated. The stable water/oil (W/O) emulsion was formed using tripropanoyl-beta-CD (TP-beta-CD). From observation using the contact angle (theta(ow)) of precipitates derived from CD, it was ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Applied Polymer Science
سال: 2008
ISSN: 0021-8995,1097-4628
DOI: 10.1002/app.27654