Photochemical Reactions in Heterochain Polymers

Farukh Fatekhovich Niyazi, Irina V. Savenkova, O. V. Burykina, G. E. Zaikov1600216579, 9781600216572, 9781606927564

Photochemical reactions are the main class of chemical processes. These processes provide for life on Earth, since due to photochemical processes, plants absorb carbon oxide from the atmosphere changing them into the ‘meal’ for all creatures on Earth. Together with ‘good’ photochemical processes there are some ‘bad’ as well. This book is about photodestruction and light stabilisation and is devoted to these processes; for example, the heterochain polymers. They are the main class of large-tonnage polymers, which are used for manning a great variety of polymer and composite materials (including nanocomposites).

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Table of contents :
PHOTOCHEMICAL REACTIONS INHETEROCHAIN POLYMERS……Page 3
NOTICE TO THE READER……Page 6
CONTENTS……Page 7
PREFACE……Page 9
1.1. PHOTO- AND THERMAL DESTRUCTION OF ALIPHATICPOLYAMIDES……Page 11
1.1.1. Sensibilized Photooxidation of Polyamides……Page 13
1.1.2. Photooxidation of Dyed Aliphatic Polyamides……Page 15
1.1.3. Thermooxidative Destruction of Polyamides……Page 16
1.1.4. Photostabilization of Polyamides……Page 17
1.1.5. Polymer Dyeing in Mass……Page 22
1.1.6. Derivatives of Aroilenbenzimidazoles Dyes for Polyamides Dyeing inMass……Page 25
1.2. PHOTOOXIDATIVE DESTRUCTION OF DYED PCA……Page 33
1.3. PHYSICO-MECHANICAL CHARACTERISTICS OF STABILIZEDPCA FIBRES AT PHOTOOXIDATION……Page 34
1.4. EFFECT OF DERIVATIVES OF BIS-AROILENBENZIMIDAZOLE ONSUPERMOLECULAR STRUCTURE OF PCA – FIBRES……Page 35
1.5.1. Absorption of Oxygen by Polycaproamide Stabilized byAroilenbenzimidazole Derivatives……Page 39
1.6.1. Spectral – Luminescent Properties of PCA……Page 43
1.6.2. Spectral-Luminescent Properties of Stabilized PCA……Page 45
1.7. EFFECT OF LONG-WAVE IRRADIATION ON DYED PCA-FIBRE……Page 47
1.8. THERMOOXIDATIVE DESTRUCTION OF MODIFIED PCA……Page 49
2.1. Modern State of Investigations of Photochemical Destruction of CDA……Page 59
2.2. ABOUT THE MECHANISM OF PHOTOOXIDATIVE DESTRUCTIONOF CELLULOSE ACETATE……Page 62
2.3. KINETICS OF RADICALS ACCUMULATION……Page 65
2.4. KINETIC REGULARITIES OF CDA PHOTOOXIDATION……Page 70
2.5. LIGHT STABILIZATION OF CDA BY HEXAAZOCYCLANES……Page 72
2.6. LIGHT STABILIZATION OF CDA BY POLYCONJUGATEDAZOMETHINE COMPOUNDS……Page 80
2.7. LIGHT STABILIZATION OF CDA BY NITROGEN AND SULPHURCONTAINING AROMATIC COMPOUNDS……Page 94
2.8. STABILIZING BY MEANS OF CHEMICAL MODIFICATIONOF CDA……Page 104
2.9. THERMO- AND PHOTOOXIDATIVE DESTRUCTION OF DYEDPOLYVINYL – ALCOHOL FIBRES……Page 106
STABILIZATION AND MODIFICATION OFPOLYETHYLENETEREPHTHALATE……Page 115
3.1. PHOTO- AND PHOTOOXIDATIVE DESTRUCTION OF PETP……Page 119
3.2. METHODS OF PETP MODIFICATION……Page 123
3.3. MODIFICATION OF PETP BY ADDITIVES OFPOLYFUNCTIONAL ACTION……Page 126
3.4. MODIFICATION OF PETP BY HEXAAZONCYCLANES……Page 133
3.5. THERMO- AND THERMOOXIDATIVE DESTRUCTION OFMODIFIED PETP – FIBRE……Page 142
3.6. LIGHT-STABILIZATION OF POLYESTERS BYHEXAAZOCYCLANES……Page 164
CONCLUSION……Page 165
APPENDIX……Page 167
REFERENCES……Page 171
INDEX……Page 187