Photo initiators polymerizable

This type of cross-polymerization of all of the organic components (hke MMA, HEMA and a polymerizable surfactant) in a bicontinuous microemulsion is an important area of recent development in microemulsion polymerization, which can be used to produce nanostructures of transparent polymer solids. The polymerization can be readily initiated using either redox or photo-initiators. The gel formation usually occurred within 20 minutes. The use of this novel type of microemulsion polymerization for preparing transparent inorganic-polymer nanocomposites in the form of films or sheets is emerging and exciting. However, very little pubhshed information about this type of nanocomposite is available, as will be described in the following sections. 

SLA (sterolithography) 0.5 (medium) Relatively easy to remove support materials. Accurate small features. Limited by the development of photo polymerizable polymers that are biocompatible and preferably, biodegradable, and nontoxic photos initiators. 

However, a careful HPLC analysis of the mixture arising from the photo-stimulated reaction between a-methoxydeoxybenzoin and methyl ot-methoxy-acrylate at room temperature demonstrated that a considerable number of products are formed during this reaction [62]. Besides the expected products, some were found to result from the addition of a captodative (methoxy)-(methoxycarb-onyl)alkyl radical to the captodative olefin itself, i.e. a propagation step. The HPLC analysis was not quantitative, but the presence of these products even at high olefin/initiator ratio (2/1) implies that a propagation step cannot be ruled out for all the above experiments only on the basis of the isolation of low-molecular weight products in good yields. As we will show the polymerizability of captodative olefins is confirmed by an analysis of the literature. 

This way many poly(ethylene oxide)s with various fimctional groups including photo- and electroactive, and polymerizable groups were prepared (280-283). Moreover, suitable combinations of termination and initiation methods yield heterofunctional telechelics. 

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