Synthesis and Some Properties of Poly(Alkylene Phosphorothioate)s Prepared from the Corresponding Poly(Alkylene H-Phosphonate)s

Кузнецова, О. Н.; Kałużyński, Krzysztof; Łapienis, Grzegorz; Pretula, Julia; Penczek, Stanisław

doi:10.1177/088391159901400303

Cited by 1 publication

(1 citation statement)

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“…It was prepared by transesterification from dimethyl phosphite and 1,3-propylene glycol (yield: 79% 348 ). Penczek showed conversion to poly-(phosphoric acid)s by oxidation with dinitrogen tetroxide, to polyphosphoramidates by chlorination with gaseous chlorine and subsequent reaction with primary amines (C-or N-substituted imidazoles, adenine or uracil), [350][351][352] or to polyphosphorothioates 353 by sufurization with sulfur in the presence of lutidine.…”

Section: Cyclic H-phosphonatesmentioning

confidence: 99%

Functional biodegradable polymers via ring-opening polymerization of monomers without protective groups

2018

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Biodegradable polymers are of current interest and chemical functionality in such materials is often demanded in advanced biomedical applications. Functional groups often are not tolerated in the polymerization process of ring-opening polymerization (ROP) and therefore protective groups need to be applied. Advantageously, several orthogonally reactive functions are available, which do not demand protection during ROP. We give an insight into available, orthogonally reactive cyclic monomers and the corresponding functional synthetic and biodegradable polymers, obtained from ROP. Functionalities in the monomer are reviewed, which are tolerated by ROP without further protection and allow further post-modification of the corresponding chemically functional polymers after polymerization. Synthetic concepts to these monomers are summarized in detail, preferably using precursor molecules. Post-modification strategies for the reported functionalities are presented and selected applications highlighted.

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