Extension of simple polycondensation gelation theories to simple radical and mixed polycondensation/radical gelation
نویسندگان
چکیده
منابع مشابه
Kinetic Gelation Modeling of Controlled Radical Polymerizations
A kinetic gelation model has been developed that incorporates the kinetics of a living/ controlled radical polymerization. Specifically, the kinetics of an iniferter polymerization were implemented in the model to determine the effect of the kinetics on the polymer structure. In particular, the replacement of the termination step with a reversible termination was examined. The model predicts th...
متن کاملSize and mass determination of clusters obtained by polycondensation near the gelation threshold
2014 The gelification process by polycondensation leading to self similar clusters of polyurethane is studied, near and below the gelation threshold. In dilute solutions, where light scattering experiments are performed, the interaction between clusters is a function of 03B5, the distance to the gelation threshold. This is a direct evidence of the swelling of the clusters. Thus, the experimenta...
متن کاملGlucose oxidase-mediated gelation: a simple test to detect glucose in food products.
This paper reports a simple, rapid, and sugar-selective method to induce gelation from glucose-containing samples. This method employs glucose oxidase (GOx) to selectively "recognize" and oxidize glucose to generate gluconic acid, which acts to solubilize calcium carbonate and release calcium ions. The release of calcium ions triggers gelation of the calcium-responsive polysaccharide alginate t...
متن کاملFormulation of Ibuprofen Beads by Ionotropic Gelation
Microencapsulation has become a common technique in the production of controlled release dosage forms. Many results have been reported, concerning the use of alginate beads as controlled release drug formulations. Alginate has a unique gel-forming property in the presence of multivalent cations, in an aqueous medium. Ibuprofen is an excellent analgesic and antipyretic, non-steroidal anti-inflam...
متن کاملModular construction and hierarchical gelation of organooxotin nanoclusters derived from simple building blocks.
Mixtures of an appropriate carboxylic acid and n-butylstannoic acid constitute modular gelation systems, in which the formation of a well-defined 'tin-drum' nanocluster subsequently underpins the hierarchical assembly of nanostructured fibres, which form self-supporting gel-phase networks in organic solvents.
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Applied Polymer Science
سال: 1999
ISSN: 0021-8995,1097-4628
DOI: 10.1002/(sici)1097-4628(19990118)71:3<517::aid-app18>3.3.co;2-q