Effects of UV-irradiation on the thermo-mechanical properties of optical grade poly(methyl methacrylate)
โ Scribed by S. Eve; J. Mohr
- Publisher
- Elsevier Science
- Year
- 2010
- Tongue
- English
- Weight
- 565 KB
- Volume
- 256
- Category
- Article
- ISSN
- 0169-4332
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๐ SIMILAR VOLUMES
## Abstract High refractive index homogeneous hybrid materials were successfully prepared. The polymer matrix was the copolymer of methyl methacrylate, sulfurโcontaining monomer 2,2โฒโmercaptoethylsulfide dimethacrylate (MESDMA), and nanotitania was prepared by __in situ__ solgel process of titanium
Ultrasonic absorption measurements were made at 3.14 MHz on poly( methyl methacrylate) as a function of temperature and after various doses of y-irradiation. The measurements showed a relaxation phenomenon. The activation energy of the various doses was determined and the smallest doses that affecte