LOW TEMPERATURE POLYMERIZATION STUDIES.
Abstract
Further investigation of the radiation polymerization of fluoral in methylene chloride confirmed that a rate relation of the form Rp = kp((M)(M)/S), (where M = monomer, and S = solvent) can be applied over a range of monomer concentration from 1 to 6 molar. This can be taken as evidence for termination by reaction with the methylene chloride. The results are consistent with a preferred anionic mode of polymerization of this monomer. Other experiments have shown that fluoral is very readily polymerized by bases, even by such weakly basic compounds as dimethylformamide. The polymerization of the fluorovinyl monomers is probably caused by the high energy radical-cation formed as a result of primary radiolysis, i.e. (using VF as an example): CH2 = CH2 + photon (yields) .CH2CHF(+) + e(-). This species can polymerize as a cation or as a radical; however, at low temperature the cation reaction is the more vigorous: .CH2CHF(+) + VF (yields) .(CH2CHF)mCH2CHF(+).
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 27, 1965
- Accession Number
- AD0623307
Entities
People
- Maurice Morton
Organizations
- University of Akron