Hyperbranched Poly(3-ethyl-3-hydroxymethyloxetane) via Anionic Polymerization
Document Type
Article
Publication Date
12-1-2002
Department
Polymers and High Performance Materials
Abstract
Anionic polymerization of 3-ethyl-3-hydroxymethyl oxetane was achieved using NaH with coinitiators benzyl alcohol (BA) or trimethylol propane (TMP). Pendent hydroxyls facilitate a multibranching polymerization. NMR confirmed the presence of linear, dendritic, and terminal repeat units. For TMP initiated polymerizations there was an acetone soluble portion which was more branched (DB = 0.48) than the acetone insoluble portion (DB = 0.20). Polymers were not soluble in water, ether or THF, but were partially soluble in acetone and completely soluble in methanol, benzene, chloroform, and DMSO. MALDI-TOF analysis showed relatively low molecular weights (around 500) and confirmed the presence of both cyclic and TMP endgroups. (C) 2002 Elsevier Science Ltd. All rights reserved.
Publication Title
Polymer
Volume
43
Issue
26
First Page
7275
Last Page
7278
Recommended Citation
Smith, T. J.,
Mathias, L. J.
(2002). Hyperbranched Poly(3-ethyl-3-hydroxymethyloxetane) via Anionic Polymerization. Polymer, 43(26), 7275-7278.
Available at: https://aquila.usm.edu/fac_pubs/3453