Mechanisms of photophysical processes and photochemical reactions in polymers: theory and applications

absorbed absorption spectrum abstract hydrogen acceptor acid acrylate alkyl amines anthracene aromatic ketones benzene benzoin benzophenone carbonyl group CH3 CH3 charge-transfer Chem chemical chloride chromophore compounds concentration copolymers crosslinking CT complex decay degradation dissociation donor effect efficiency electron emission energy migration energy transfer ether excimer excimer formation exciplex excited singlet excited triplet exciton film formed free radical polymerization hydrogen abstraction hydroperoxide interaction intersystem crossing intramolecular ketone ketyl ketyl radical kinetic lifetime low molecular macromolecules mechanism methyl methacrylate molecule monomer naphthalene occurs oxidation peroxide phenyl phosphorescence photochemical reaction photocleavage photodegradation photoinitiate polymerization photoinitiators photolysis photon photooxidation photophysical photopolymerization photoreduction photosensitive photostabilizers pigments polar poly poly(vinyl poly(vinyl chloride polymer polymer chain polymer matrix polymerization of methyl polystyrene produce quantum yield quencher quenching radiation rate constant reactive salts Section solution solvent spectra stabilizers structure styrene Table temperature tetrahydrofurane thermal u.v. irradiation Wavelength nm