Mechanisms of Photophysical Processes and Photochemical Reactions in Polymers: Theory and ApplicationsDuring the last two decades, photophysical and photochemical processes have become increasingly important in many branches of polymer chemistry. Tremendous advances have been made in our understanding of the theory of photoreactions and they now have many practical applications in, for example, the synthesis of photoresists for microcircuitry, polymers for xerography, photocuring of paints and resins, photodegradation and photodestabilization of polymers. |
From inside the book
Results 1-3 of 43
Page 188
... CT complex mechanism . 875 5.3.2 . Different Types of Charge - transfer Complex Photoinitiated Polymerizations Different types of CT complexes formed between two chemically different molecules may photoinitiate polymerization of ...
... CT complex mechanism . 875 5.3.2 . Different Types of Charge - transfer Complex Photoinitiated Polymerizations Different types of CT complexes formed between two chemically different molecules may photoinitiate polymerization of ...
Page 189
... CT COMPLEX ( 5.15 ) ( 5.16 ) ( 5.67 ) ( iii ) CT complex between dimethylamine ( donor ) ( 5.17 ) and nitrosobenzene ( acceptor ) ( 5.18 ) : 1321 , 1322 CH3 N : + ( 5.17 ) CH3 = 0 CH3 Ο N + -N N- CH3 ( 5.18 ) CT COMPLEX ( 5.19 ) ( 5.68 ) ...
... CT COMPLEX ( 5.15 ) ( 5.16 ) ( 5.67 ) ( iii ) CT complex between dimethylamine ( donor ) ( 5.17 ) and nitrosobenzene ( acceptor ) ( 5.18 ) : 1321 , 1322 CH3 N : + ( 5.17 ) CH3 = 0 CH3 Ο N + -N N- CH3 ( 5.18 ) CT COMPLEX ( 5.19 ) ( 5.68 ) ...
Page 191
... CT complexes between tetrahydrofuran and sulphur dioxide ( SO2 ) , 1314 ... COMPLEX ( 5.26 ) CH3 CH2 - C ( TiCl4 ) + monomer → polymerization + hv ... CT complex between methylacrylolyl - L - vaniline and maleic anhydride photoinitiates ...
... CT complexes between tetrahydrofuran and sulphur dioxide ( SO2 ) , 1314 ... COMPLEX ( 5.26 ) CH3 CH2 - C ( TiCl4 ) + monomer → polymerization + hv ... CT complex between methylacrylolyl - L - vaniline and maleic anhydride photoinitiates ...
Contents
Preface | 1 |
Figs 16 1 16 2 16 8 16 | 3 |
Electronic energy transfer processes | 33 |
Copyright | |
9 other sections not shown
Common terms and phrases
absorbed absorption absorption spectrum acceptor acetate acid acrylate alkyl amines aromatic ketones benzene benzoin benzophenone carbonyl group CH₂ CH3 CH3 charge-transfer Chem chemical chromophore compounds concentration copolymers crosslinking CT complex degradation dissociation donor effect efficiency electron emission energy migration energy transfer ether excimer excimer formation exciplex excited singlet excited triplet exciton film fluorescence intensity formed hydrogen abstraction hydroperoxide interaction intersystem crossing intramolecular ketone ketyl ketyl radical kinetics lifetime low molecular Macromolecules mechanism methyl methacrylate molecule monomer occurs oxidation peroxide phenyl phosphorescence Photocrosslinkable Photodegradation photoinitiate polymerization photoinitiators photolysis photon photooxidation photopolymerization photoreduction photosensitizers photostabilizers pigments polar poly(methyl methacrylate poly(vinyl chloride polymer polymer chain polymer matrix polystyrene produced quantum yield quencher quenching R₁ R₂ radiation rate constant reactive S₁ salts Section sensitizer solution solvent spectra spectrum stabilizers structure styrene Table temperature tetrahydrofurane thermal triplet state T₁ u.v. irradiation Wavelength nm