Authors: Kemp, Terence J.; McIntyre, Robin A.

Source: Progress in Reaction Kinetics and Mechanism, Volume 26, Number 4, 2001 , pp. 337-374(38)

Publisher: Science Reviews 2000 Ltd

Abstract:

The extensive use of titanium dioxide as a pigment and optical agent in polymers, particularly poly(vinyl chloride), polyethylene and alkyd resins, has prompted many investigations of the various deleterious effects (loss of gloss and mechanical properties, chalking, pinking) of long-term exposure to sunlight of the pigmented polymers. This short review summarises the fundamental semiconductor processes undergone by TiO₂ on UV irradiation and the consequent chemical action of the reactive intermediates so generated. It also describes the strategies developed to counteract photodegradation induced by TiO₂, in particular its encapsulation in a coating by near-UV transparent metal oxides, such as Al₂O₃ and SiO₂, with wide band gaps. The effects of doping TiO₂ with transition metal ions are also noted.

Document Type: Research article

DOI: http://dx.doi.org/10.3184/007967401103165316

Publication date: 2001-12-01

More about this publication?

• Progress in Reaction Kinetics & Mechanism is an international journal for the quarterly publication of both in-depth reviews and research articles.

  In-depth reviews are comprehensive accounts bringing together work from many sources with the aim of providing an article of lasting value that will become established as the reference source in the particular subject. Research articles, on the other hand, normally focus on a relatively new or recently developed field or technique giving a state-of-the-art account of the subject and may well refer to a narrower range of existing work. It covers the fields of kinetics and mechanisms of chemical processes in the gas phase and solution of both simple and complex systems.

• Editorial Board
• Subscribe to this Title
• ingentaconnect is not responsible for the content or availability of external websites

Related content

• In this: publication
• By this: publisher
• In this Subject: Analytical Chemistry ,  Physical & Theoretical Chemistry
• By this author: Kemp, Terence J. ;  McIntyre, Robin A.

Website © Publishing Technology. Article copyright remains with the publisher, society or author(s) as specified within the article.

• Terms and conditions
• Privacy policy
• Information for advertisers