Rate of disappearance of cC2CC of the chalcone unit of polymer 3 with irradiation time in different solvents; (0) CHCl 3 , (g) 1,4-dioxane, (h) THF, (f) DMF, and (j) in DMSO.
Photopolymer: synthesis and characterization of poly(4-methacryloyloxyphenyl-4′-chlorostyryl ketone)
✍ Scribed by K Subramanian; V Krishnasamy; S Nanjundan; A V Rami Reddy
- Publisher
- John Wiley and Sons
- Year
- 2000
- Tongue
- English
- Weight
- 153 KB
- Volume
- 49
- Category
- Article
- ISSN
- 0959-8103
No coin nor oath required. For personal study only.
✦ Synopsis
Methacrylate monomer containing a photodimerizable a,b-unsaturated ketone moiety was prepared and polymerized in ethyl methyl ketone at 70 °C using benzoyl peroxide as an initiator. The polymer was characterized by UV, IR, 1 H NMR and 13 C NMR spectra. The molecular weights (M w and M n ) of the polymer were determined by gel permeation chromotography. The thermal stability of the polymer was measured by thermogravimetric analysis in air and nitrogen. The glass transition temperature of the polymer was determined by differential scanning calorimetry. The photo reactivity of the polymer was investigated as thin ®lm and in solution.
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