Four samples of C 60 -(PS) 2 , i. e., C 60 fullerenes with two low-polydispersity PS arms at the 1,4positions, were studied with respect to their solubility and dispersion state in a PS (polystyrene) matrix by the UV spectroscopic method. C 60 -bearing polymers were found to be dispersed, in a blend
The reaction of boric acid with wood in a polystyrene matrix
β Scribed by Yanxin Wang; John Simonsen; Carlos Pascoal Neto; Joao Rocha; Timothy G. Rials; Eric Hart
- Publisher
- John Wiley and Sons
- Year
- 2003
- Tongue
- English
- Weight
- 34 KB
- Volume
- 62
- Category
- Article
- ISSN
- 0021-8995
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The elastomers of polyvinyl alcohol gel were made from the polyvinyl alcohol polymer, with boric acid added as a crosslinking agent, in the mixed solvent of dimethyl sulfoxide and water. From the experimental results, the viscosity of polyvinyl alcohol solution is found to increase not only with an
Kinetics of the reaction of acetic acid with epichlorohydrin in the presence of chromium(III) acetate in butan-1-ol solution have been studied. The partial reaction orders with respect to reagents were found. The reactions were of first-order with respect to both epichlorohydrin and catalyst and zer