New stabilizers for PVC based on benzothiazole complexes : Photostabilizing of PVC Films by 2-amino acetate benzothiazole chelate complexes

Language: English

Published by LAP LAMBERT Academic Publishing, 2011

3844323589 / 9783844323580

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nach der Bestellung gedruckt Neuware - Printed after ordering - The work described in this thesis, potasium-2-amino acetate benzothiazole chelate complexes were prepared. Infrared, ultraviolet-visible, spectrophotometric techniques, magnetic susceptibility, atomic absorption conductivity measurement and other physical properties were used to characterize the free ligand and the above chelate complexes. All these compounds were act as stabilizer in PVC films. The rate of photodegradation and photostabilization of PVC film were monitored by measuring the carbonyl, polyene and hydroxyl indices (Ico, Ipo and IoH) values as afunction with irradiation time and ultraviolet-visible spectrophotometry using the concentrations of additive 0.5% wt/wt. It is found that the carbonyl index, polyene index and hydroxyl index values increased with irradiation time, and this increase depend on the type of additives (free ligand and complexes). According to the experimental results obtained several mechanisms were suggested depending on the structure of the additives. Therefore HCl scavenging, UV absorption, peroxide decomposer and radical scavenger for photostabilizer additives were suggested.

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Title
New stabilizers for PVC based on benzothiazole complexes : Photostabilizing of PVC Films by 2-amino acetate benzothiazole chelate complexes
Author
Hadeel Adil
Publisher
LAP LAMBERT Academic Publishing
Publication year
2011
Condition
Neu
Binding
Taschenbuch
Language
English
ISBN 10
3844323589
ISBN 13
9783844323580
Item weight
131 grams
Dimensions
220x150x5 mm

AHA-BUCH GmbH

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