Issue 3, 2023

Transparent and flexible high-surface area nanoporous crystalline PPO films

Abstract

Guest and processing conditions leading to high surface area (SA) nanoporous-crystalline (NC) poly(2,6-dimethyl-1,4-phenylene)oxide (PPO) films are explored. In this framework, we found crystallization conditions leading to unprecedented high-SA films (with SA up to 450 m2 g−1) with transparency and toughness comparable with those for amorphous PPO films. Suitable preparation procedures require (i) guest-induced co-crystallization by large uptake of a highly boiling guest molecule; (ii) guest sorption from the vapor phase at a temperature close to the guest boiling point; and (iii) subsequent guest removal by sorption/desorption of a volatile guest. This high-SA, transparent, and tough NC PPO films are expected to be suitable for organic pollution remediation, molecular separations, and molecular sensing.

Graphical abstract: Transparent and flexible high-surface area nanoporous crystalline PPO films

Article information

Article type
Paper
Submitted
13 oct. 2022
Accepted
15 nov. 2022
First published
16 nov. 2022
This article is Open Access
Creative Commons BY license

Mater. Adv., 2023,4, 881-889

Transparent and flexible high-surface area nanoporous crystalline PPO films

B. Nagendra, S. Salman, C. Daniel, P. Rizzo and G. Guerra, Mater. Adv., 2023, 4, 881 DOI: 10.1039/D2MA00975G

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