Anionic synthesis of amine ω-terminated β-myrcene polymers

• Published in: Journal of polymer research Vol. 22; no. 11; pp. 1 - 8
• Main Authors: Avila-Ortega, A, Aguilar-Vega, Manuel, Loria Bastarrachea, Maria I, Carrera-Figueiras, Cristian, Campos-Covarrubias, M
• Format: Journal Article
• Language: English
• Published: Dordrecht Springer Netherlands 01.11.2015
• Subjects: Addition polymerization; Amines; Chains (polymeric); Characterization and Evaluation of Materials; Chemistry; Chemistry and Materials Science; Industrial Chemistry/Chemical Engineering; Isomers; Original Paper; Perchloric acid; Polymer Sciences; Polymerization; Polystyrene resins; Texts; Anionic polymerization; Primary amine functionalization; benzylidenetrimethylsilylamine
• ISSN: 1022-9760; 1572-8935
• DOI: 10.1007/s10965-015-0856-6

Well-defined amine ω -terminated β -myrcene polymers were synthetized via anionic living polymerization under an inert atmosphere with dropwise addition of equimolar amounts of N -benzylidenetrimethylsilylamine to β -myrcene polymer living chain ends in benzene at 25 °C. Chain coupling and acetophenone polymers were not detected as side products. End-group titration with perchloric acid showed a polymer amination yield of up to 85 % of ω -terminated β -myrcene polymers. The amine ω -terminated β -myrcene polymers were synthesized with a narrow molecular weight distribution ( M w - / M n - ≈ 1.1) as calculated by GPC analysis using polystyrene standards. Functionalization of the amine group in the polymer chain was corroborated with FTIR, 1 H-NMR, and 13 C-RMN spectra. A higher yield of the amine ω-terminated β-myrcene polymer was not achieved due to differences in isomer conformation in the β-myrcene polymer.