The evolution of free volume and gas transport properties for the thermal rearrangement of poly(hydroxyamide-co-amide)s membranes
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Membrane Science"
DOI: 10.1016/j.memsci.2018.11.029
Abstract: Abstract Within a microporous polymer membrane, its high gas separation performance is much dependent on the free volume element architecture. In this study, thermally rearranged poly(benzoxazole-co-amide) (TR-PBOA) copolymer membranes were prepared by in-situ thermal treating… read more here.
Keywords: gas; temperature; free volume; thermal rearrangement ... See more keywords
Reduced thermal rearrangement temperature via formation of zeolitic imidazolate framework (ZIF)-8-based nanocomposites for hydrogen purification
Sign Up to like & getrecommendations! Published in 2019 at "Separation and Purification Technology"
DOI: 10.1016/j.seppur.2018.12.016
Abstract: Abstract Thermally rearranged polymers are a class of heterocyclic microporous polymers generated by in situ thermal rearrangement (TR) of ortho-hydroxy polyamides or polyimides at elevated temperatures to produce polybenzoxazole (PBO). Poly(hydroxyamide) (PHA) was selected as… read more here.
Keywords: imidazolate framework; zeolitic imidazolate; zif; pha ... See more keywords
Enhanced gas separation and mechanical properties of fluorene-based thermal rearrangement copolymers
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DOI: 10.1039/d0ra10775a
Abstract: The fluorene-based thermal rearrangement copolymers exhibited excellent gas separation and mechanical properties. read more here.
Keywords: rearrangement copolymers; fluorene based; based thermal; thermal rearrangement ... See more keywords
Gas Permeability, Fractional Free Volume and Molecular Kinetic Diameters: The Effect of Thermal Rearrangement on ortho-hydroxy Polyamide Membranes Loaded with a Porous Polymer Network
Sign Up to like & getrecommendations! Published in 2022 at "Membranes"
DOI: 10.3390/membranes12020200
Abstract: Mixed-matrix membranes (MMMs) consisting of an ortho-hydroxy polyamide (HPA) matrix, and variable loads of a porous polymer network (PPN) were thermally treated to induce the transformation of HPA to polybenzoxazole (β-TR-PBO). Two different HPAs were… read more here.
Keywords: free volume; ortho hydroxy; volume; filler ... See more keywords