Structural interpretation of the interfacial properties of aqueous solutions of methylcellulose and hydroxypropyl methylcellulose
β Scribed by Nitis Sarkar
- Publisher
- Elsevier Science
- Year
- 1984
- Tongue
- English
- Weight
- 572 KB
- Volume
- 25
- Category
- Article
- ISSN
- 0032-3861
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π SIMILAR VOLUMES
From a mixture of a methanol solution of ibuprofen (IB) and an aqueous solution of hydroxypropyl methylcellulose (HPMC), clear, uniform sol was obtained at the methanol/water proportion 7/3. When sol was brought to dryness, nanocomposite gel was obtained with amorphous IB particles of 20-50 nm dispe
Aqueous solutions of methyl and hydroxypropyl methylcellulose are known to gel upon heating. These gels are completely reversible in that they are formed upon heating yet w i l l liquefy upon cooling. The precipitation temperature, gelation temperature, and gel strength of these methylcellulose so