Polymer, Vol.55, No.1, 326-329, 2014
Centrotriindane- and triptindane-based polymers of intrinsic microporosity
In this paper we describe the synthesis and physical characterisation of polymers derived from hydroxyl containing bowl-shaped "centrotriindane" and propellane-type "triptindane" monomers using the dibenzodioxin-forming polymerisation reaction with 2,3,5,6-tetrafluoroterephthalonitrile. Evaluation of the microporosity of the resulting polymers via nitrogen adsorption measurements revealed apparent Brunauer-Emmett-Teller (BET) surface areas in the range of 555-1039 m(2) g(-1) which can be related to the distinct shape of the monomeric units. An evaluation of the shape of the monomers, using X-ray crystallography, helps to explain the degree of microporosity of the polymers from which they are made. (C) 2013 Elsevier Ltd. All rights reserved.