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Self-Assembled, Fluorine-Rich Porous Organic Polymers: A Class of Mechanically Stiff and Hydrophobic Materials.

Chemistry (Weinheim an der Bergstrasse, Germany) (2018-05-29)
Soumya Mukherjee, Zhixin Zeng, Mandar M Shirolkar, Partha Samanta, Abhijeet K Chaudhari, Jin-Chong Tan, Sujit K Ghosh
ABSTRACT

Fluorous organic building blocks were utilized to develop two self-assembled, hydrophobic, fluorinated porous organic polymers (FPOPs), namely, FPOP-100 and FPOP-101. Comprehensive mechanical analyses of these functionalised triazine network polymers marked the introduction of mechanical stiffness among all porous organic network materials; the recorded stiffnesses are analogous to those of their organic-inorganic hybrid polymer congeners, that is, metal-organic frameworks. Furthermore, this study introduces a new paradigm for the simultaneous installation of mechanical stiffness and high surface hydrophobicity into polymeric organic networks, with the potential for transfer among all porous solids. Control experiments with non-fluorinated congeners underlined the key role of fluorine, in particular, bis-trifluoromethyl functionalization in realizing the dual features of mechanical stiffness and superhydrophobicity.

MATERIALS
Product Number
Brand
Product Description

Sigma-Aldrich
Cesium fluoride, 99%
Sigma-Aldrich
3,5-Bis(trifluoromethyl)aniline, 97%
Sigma-Aldrich
4-Fluorobenzonitrile, 99%
Sigma-Aldrich
3,5-Dimethylaniline, 98%
Sigma-Aldrich
2,5-Dimethylaniline, 99%
Sigma-Aldrich
2,5-Bis(trifluoromethyl)aniline, 99%

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