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Photodegradation and photostabilization of polystyrene - Photochemistry of polymers

English, German · Paperback / Softback

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Description

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Polystyrene is one of the important commercial polymers, widely used in various industrial fields. One of the important uses of PS is in the manufacture of cover signals lamp of some automobiles. PS is subjected to the irradiation of sunlight on outdoor exposure.Almost all synthetic polymers require stabilization against adverse environmental effects. It is necessary to find a means to reduce or prevent damage induced by environmental components such as heat, light or oxygen. This can be achieved through addition of special chemicals, light or UV stabilizers, that are selected to be compatible with the resin and the specific application considered. The photostabilization of polymers may be achieved in many ways. The following stabilizing systems have been developed, which depend on the action of stabilizer. a) Light screeners. b) U.V. absorbers, c) Excited state quenchers, d) Peroxide decomposers and e) Free radical scavengers, of these it is generally believed that types c), d) and e) are the most effective.

About the author










Graduated from Baghdad University, Iraq, in 1996 with a BSc in chemistry. He then transferred to Al-Nahrain University, also in in Baghdad, to study for his MSc and PhD,and graduated in 1998 and 2004, respectively, with a focus on inorganic and polymer chemistry.

Product details

Authors Ahmed Ahmed, Ragha Haddad, Raghad Haddad, Ema Yousif, Emad Yousif
Publisher LAP Lambert Academic Publishing
 
Languages English, German
Product format Paperback / Softback
Released 01.01.2013
 
EAN 9783659359774
ISBN 978-3-659-35977-4
No. of pages 84
Subject Natural sciences, medicine, IT, technology > Chemistry > Physical chemistry

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