Photopolymerisation, in-situ

The scope of ion-selective electrodes (ISEs) has been greatly enhanced by employing a poly(vinyl chloride) matrix to entangle sensor cocktail materials. Fbr ISFET devices an in situ photopolymerisation of monobutyl methacrylate provides a viable poly(butyl methacrylate) calcium sensor film with good gate adhesion properties. One or more enzymes can be chemically immobilized on modified nylon mesh. The resultant matrices are suitable for the amperometric assay of carbohydrates in blood and food products. 

Fig. 16 Dendron used for assembly of gel-phase materials which can subsequently be crosslinked by in situ photopolymerisation of the triple bonds...

In-situ Raman spectroscopy experiments were used to determine effective kinetic propagation constants for a series of unsteady-state divinyl ether polymerisations at different isothermal temperatures and light intensities. A series of Raman experiments were performed on cationic photopolymerisations of a divinyl ether initiated with a diaryliodonium salt of hexafluoroantimonate photosensitised by anthracene. Isothermal Raman experiments were performed for a series of reaction temperatures and were used to determine the overall activation energy of the polymerisation reaction. 20 refs. USA... 

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