The Copolymerization of Alkylene Glycol Nitrate Acrylates and Methacrylates

• Published in: Bulletin of the Chemical Society of Japan Vol. 43; no. 1; pp. 208 - 211
• Main Authors: Moriya, Masafumi, Yamashita, Tadataka
• Format: Journal Article
• Language: English
• Published: Tokyo The Chemical Society of Japan 01.01.1970; Chemical Society of Japan
• DOI: 10.1246/bcsj.43.208
• ISSN: 0009-2673

The copolymerization of alkylene glycol nitrate acrylates (ANA) and methacrylates (ANMA) [M2] with styrene [M1] has been carried out at 60°C. The alkylene glycol mononitrates used were ethylene, propylene, and butylene glycol mononitrates, abbreviated as EGN, PGN, and BGN respectively. For their acrylates and methacrylates, the following abridged notations are used: ENA and ENMA, PNA and PNMA, and BNA and BNMA respectively. The monomer reactivity ratios, r1 and r2, and the Alfrey-Price Q2 and e2 values for ANA and ANMA were evaluated as follows: r1=0.48, r2=0.08, Q2=0.49, and e2=1.00 for ENA; r1=0.41, r2=0.20,Q2=0.69, and e2=0.78 for BNA; r1=0.35, r2=0.49, Q2=0.99, and e2=0.53 for ENMA; r1=0.36, r2=0.50, Q2=0.98, and e2=0.51 for PNMA and r1=0.37, r2=0.40, Q2=0.90, and e2=0.58 for BNMA. The polar and steric effects of the ester side chain containing the nitrate group were discussed. ANA was copolymerized with some other divinyl monomers, and the resulting crosslinked copolymer were subjected to the swelling test.