Photoinitiated polymerization of styrene in microemulsions

Abstract

(18) Dzhabiyev, T . S.; DYachkovakii, F. S.; Shilov, A. Ye. ABSTRACT Photoinitiated polymerization of styrene in oil/water microemulsions has been successfully performed by using dibenzyl ketone (DBK) as initiator. The system remains transparent during the whole polymerization process. The molecular weights of polymers produced are in the order of IO5, and the polydispersity indexes (PDI) are in the range 1.6-2.2. The particle sizes of the latexes produced are in the range 30-60 nm, with polydispersity indexes 1.05-1.08.

Organic microporous materials made by bicontinuous microemulsion polymerization

“…On polymerization, they routinely produce latex particles an order of magnitude larger than that expected from the size of the original droplets (Candau et al, 1984;Johnson and Gutari, 1984;Guo et al, 1989;Brouwer, 1989;Perez-Luna et al, 1990;Candau, 1989;Gan et al, 1991). The mechanism for forming these larger particles, sometimes described as agglomeration or coagulation, may be related to the same mechanism responsible for the larger sizes observed here (Kuo et al, 1987;Larpent and Tadros, 1991;Guo et al, 1992 a,b).…”

Two Routes Towards Photoinitiator‐Free Photopolymerization in Miniemulsion: Acrylate Self‐Initiation and Photoactive Surfactant

“…[ 12 ] Although the vast majority of these polymerizations are thermally initiated, an alternative approach was UV light induced the polymerization from monomer microemulsion. [13][14][15][16] More recently miniemulsions [17][18][19] composed of metastable acrylate nanodroplets ( < 100 nm) with weakly scattering properties are prepared in water permitting a suffi cient penetration of light. Nucleation is assumed to take place inside nanodroplets and promote their conversion into polymer particles, in the absence of any destabilization phenomena.…”

Preparation of poly(methyl methacrylate) nano-latexes via UV irradiation in the presence of iron aqueous solution

“…A series of methods such as microwave, ultrasound and electron beam have been applied to emulsion polymerization. [12][13][14] UV light has also become a useful tool for initiating polymerization due to certain significant advantages [15,16]. This method has been applied to emulsion polymerization [17,18].…”