CONTRIBUTION TO THE STUDY OF GRAFTED COPOLYMERS PREPARED BY RADIOCHEMICAL METHODS. I. GENERAL CONDITIONS OF GRAFTING. SEPARATION AND CHARACTERIZATION OF THE GRAFTED COPOLYMER (in French)
The radiochemical grafting of styrene on polyisobutylene was studied. A method is proposed for the separation and the analysis of the grafted copolymer obtained. Some of the properties in solution were studied. Two conclusions were reached, one on the structure of the grafted copolymer and the other on the mechanism of the radiolysis of the polyisobutylene in solution in the styrene. It was established that the different samples prepared under the conditions studied have a spreading structure and that the radiolysis of the polyisobutylene leads to the rupture of the lateral chains. A study was made of the modifications--separation into two macrophases and separation into microphases in the place of one of the macrophases. These modifications occur in the reacting medium during the grafting and are the result of the incompatibility of the polymers present. This examination permitted the deduction that the grafting oecurs in a precipitating medium. (tr-auth)
- Research Organization:
- Faculte des Sciences, Paris; and CNRS, Bellevue, France
- NSA Number:
- NSA-15-014313
- OSTI ID:
- 4062226
- Journal Information:
- Journal de Chimie Physique (France) Merged with Rev. Gen. Colloides to form J. Chim. Phys. Rev. Gen. Colloides, Journal Name: Journal de Chimie Physique (France) Merged with Rev. Gen. Colloides to form J. Chim. Phys. Rev. Gen. Colloides Vol. Vol: 58; ISSN JCPQA
- Country of Publication:
- Country unknown/Code not available
- Language:
- French
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