Photodegradation of methyl salicylate in poly(methylmethacrylate)

Conference · Sun Jan 01 00:00:00 EST 1984

OSTI ID:5305760

Renschler, C L

Methyl salicylate (MS) has been found to undergo photo-induced decarboxylation to form phenol. The process is first order and has a reaction quantum yield of ca. 8 x 10/sup -5/ and an activation energy of 1.2 kcal./mol (5.0 kJ/mol). Kinetic data were used in computer simulations of photodegradation of MS in poly(methylmethacrylate) (PMMA) solar lenses. It was predicted that typical MS concentrations would provide effective uv screening protection for less than 2 years.

• Research Organization: Sandia National Labs., Albuquerque, NM (USA)
• DOE Contract Number: AC04-76DP00789
• OSTI ID: 5305760
• Report Number(s): SAND-83-2444C; CONF-8404110-2; ON: DE84007887
• Resource Relation: Conference: 4. international conference on high temperature science - HYTHERM, Santa Fe, NM, USA, 2 Apr 1984; Other Information: Portions are illegible in microfiche products
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
14 SOLAR ENERGY
LENSES
ADDITIVES
PMMA
SALICYLIC ACID
PHOTOLYSIS
DECARBOXYLATION
ESTERS
REACTION KINETICS
CARBOXYLIC ACIDS
CHEMICAL REACTIONS
DECOMPOSITION
HYDROXY ACIDS
KINETICS
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC POLYMERS
PHOTOCHEMICAL REACTIONS
POLYACRYLATES
POLYMERS
POLYVINYLS
400500* - Photochemistry
140500 - Solar Energy Conversion