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Synthesis and reactions of telechelic polyacetals
Author(s) -
Goethals Eric J.,
De Clercq Ronny R.,
De Clercq Hilde C.,
Hartmann Patrick J.
Publication year - 1991
Publication title -
makromolekulare chemie. macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 0258-0322
DOI - 10.1002/masy.19910470113
Subject(s) - polymer chemistry , chemistry , comonomer , polymerization , copolymer , monomer , living polymerization , polymer , organic chemistry , radical polymerization
Telechelic polyacetals have been synthesized by endcapping of bifunctionally living polyacetals with tertiary amines. Bifunctionally living poly‐(1, 3‐dioxolane) (poly‐DXL) was obtained by polymerization of the cyclic acetal initiated with terephthaloyl‐bis‐triflate. Attempts to prepare well defined bifunctionally growing poly‐DXL with trifluoro‐methane sulfonic acid anhydride failed. Low molecular weight dialkyl formals containing functional groups were used as transfer agents for the polymerization of cyclic acetals to control the molecular weight of the polymer and to introduce functional endgroups. Polytelechelic hydroxy‐terminated poly‐DXL was synthesized by copolymerization of DXL and glycidol. The latter monomer reacts as comonomer through its epoxy ring and as transfer agent by its hydroxyl group.