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Polymers of Intrinsic Microporosity derived from a carbocyclic analogue of Tröger's base

Carta, Mariolina ORCID:, Bezzu, C. Grazia, Vile, James, Kariuki, Benson M. ORCID: and McKeown, Neil B 2017. Polymers of Intrinsic Microporosity derived from a carbocyclic analogue of Tröger's base. Polymer 126 , pp. 324-329. 10.1016/j.polymer.2017.03.037

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Tröger's base (TB) is often used as a building block for the synthesis of Polymers of Intrinsic Microporosity (PIMs) due to its rigid bicyclic V-shaped structure. In this study the TB component in the structure of a PIM is replaced by 2,3:6,7-dibenzobicyclo[3.3.1]nonane, a purely carbocyclic analogue of TB. This modification results in only a slightly reduced amount of microporosity as determined using nitrogen adsorption. Further comparisons with previously reported PIMs indicate that this building unit (and therefore TB) is significantly less effective for the generation of intrinsic microporosity than spirobisindane, a commonly used structural unit for PIM synthesis. It appears that the V-shape of the 2,3:6,7-dibenzobicyclo[3.3.1]nonane and TB units allows closer contact between polymer chains thereby enhancing packing efficiency.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Chemistry
Subjects: Q Science > QD Chemistry
Uncontrolled Keywords: Polymers of intrinsic microporosity; Tröger’s base
Publisher: Elsevier
ISSN: 0032-3861
Date of First Compliant Deposit: 9 May 2017
Date of Acceptance: 17 March 2017
Last Modified: 24 Nov 2022 18:07

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