Chitosan films were grafted with N,N-dimethylaminoethylmethacrylate using the 60 Co gamma irradiation method. The effect of solvent composition, monomer concentration, dose rate, and total dose on grafting was studied. The solvent composition has a marked effect on the degree of grafting. Maximum yi
Synthesis of functional polymers by radiation-induced grafting of acrolein onto polyethylene film
โ Scribed by H. Omichi; A. Katakai; J. Okamoto
- Publisher
- John Wiley and Sons
- Year
- 1989
- Tongue
- English
- Weight
- 393 KB
- Volume
- 37
- Category
- Article
- ISSN
- 0021-8995
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โฆ Synopsis
Acrolein was grafted onto polyethylene f i l m with radiation energy in order to make functional polymers containing hydrazone, oxhe, and oxyacid. The kinetic analysis of the grafting reaction revealed that the irradiation dose affected not only the initiation but also the propagation and termination steps. The activation energies were 12.5 kcal/mol for propagation and 23.3 kcal/mol for termination, respectively. All the introduced aldehyde groups, free, hydrolyzed, and used for ring formation, participated in the reaction with phenylhydrazine. The conversions of aldehyde group to hydrazone, oxhe, and oxyacid were small when the grafting yield of acrolein was high.
๐ SIMILAR VOLUMES
Polypropylene (PP) รlms were grafted with N-phenylmaleimide using c-radiation. The e โ ect of both monomer concentration and dose rate on the degree of grafting was measured. Characterization of the grafted PP รlms included IR spectroscopy, X-ray spectroscopy, electrical conductivity, mechanical prop