Polymerization of allyl alcohol by radiation to obtain microencapsulated structure

Date

1989-4

Author

Usanmaz, Ali
Sarıcılar Zengin, Süreyya

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Allyl alcohol was polymerized by radiation under various conditions. The limiting conversions were about 30% in bulk, 35% when containing 0.03 mole fraction AlCl3 and 50% when water was contained at 27% (v/v). Irradiation was done with Co-60 gamma rays at room temperature and under vacuum. The presence of oxygen did not cause any change in the reaction rate. Molecular weights were determined by viscosity and cryoscopic methods. K and α values were found to be 3.57×10−4 and 0.62 for solutions in methanol at 25°C. The polymers up to about 10% conversion were viscous liquids having microcapsular structures: at high conversions, they became hard and glassy. The microencapsulated structures were also retained in solutions in methanol, acetone, and isopropyl alcohol. The samples were insoluble in water, benzene, and toluene.

Subject Keywords

Materials chemistry, Polymers and plastics

URI

https://hdl.handle.net/11511/51765

Collections

Department of Chemistry, Article