Arz Marius I, Annibale Vincent T, Kelly Nicole L, Hanna John V, Manners Ian
School of Chemistry , University of Bristol , Cantock's Close , Bristol BS8 1TS , United Kingdom.
Department of Physics , University of Warwick , Gibbet Hill Road , Coventry CV4 7AL , United Kingdom.
J Am Chem Soc. 2019 Feb 20;141(7):2894-2899. doi: 10.1021/jacs.8b13435. Epub 2019 Feb 6.
We describe a new class of inorganic polymeric materials featuring a main chain consisting of P-O bonds and aryl side groups, which was obtained with >70 repeat units by ring-opening polymerization of cyclic phosphonates. This monomer-polymer system was found to be dynamic in solution enabling selective depolymerization under dilute conditions, which can be tuned by varying the substituents. The polymers show high thermal stability to weight loss and can be easily fabricated into self-standing thin films. Structural characterizations of the cyclic 6- and 12-membered ring precursors are also described.
我们描述了一类新型无机聚合物材料，其主链由P-O键和芳基侧基组成，通过环状膦酸酯的开环聚合获得了具有70多个重复单元的该材料。发现这种单体-聚合物体系在溶液中具有动态性，能够在稀溶液条件下进行选择性解聚，这可以通过改变取代基来调节。这些聚合物在失重方面表现出高的热稳定性，并且可以很容易地制成自立式薄膜。还描述了环状六元环和十二元环前体的结构表征。
