## Abstract Methyl methacrylate (MMA) was polymerized in bulk solutions using low intensity ultrasonic radiation of 0.25 W/cm^2^. The polymerization occurred after 1 h of irradiation time was applied. The polymerization rate was greatly accelerated either by increasing the amount of poly (methyl me
Ultrasonic irradiation effect on porphyrin and its application for quantification of ultrasonic intensity
β Scribed by Hiroyasu Nomura; Shinobu Koda; Keiji Yasuda; Yoshihiro Kojima
- Publisher
- Elsevier Science
- Year
- 1996
- Tongue
- English
- Weight
- 291 KB
- Volume
- 34
- Category
- Article
- ISSN
- 0041-624X
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π SIMILAR VOLUMES
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
Effect of ultrasonic irradiation on ceric salt (Ce 4Ο© )-initiated grafting of methyl methacrylate (MMA) on regenerated cellulose film (thickness Ο 20 m) was investigated under an air atmosphere in water solvent at 60Β°C. The grafting system with the ultrasonic irradiation was characterized by higher