Alfonso González‐Ortega
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View article: Isomeric Aromatic Polyimides Containing Biphenyl Moieties for Gas Separation Applications
Isomeric Aromatic Polyimides Containing Biphenyl Moieties for Gas Separation Applications Open
An optimized synthesis of the monomer 2,2′3,3′-biphenyltetracarboxylic dianhydride, iBPDA, was performed to obtain high molecular weight polymers. This monomer has a contorted structure that produces a non-linear shape, hindering the packi…
View article: Polymer materials derived from the SEAr reaction for gas separation applications
Polymer materials derived from the SEAr reaction for gas separation applications Open
View article: Free Volume and Permeability of Mixed Matrix Membranes Made from a Terbutil-M-terphenyl Polyamide and a Porous Polymer Network
Free Volume and Permeability of Mixed Matrix Membranes Made from a Terbutil-M-terphenyl Polyamide and a Porous Polymer Network Open
A set of thermally rearranged mixed matrix membranes (TR-MMMs) was manufactured and tested for gas separation. These membranes were obtained through the thermal treatment of a precursor MMM with a microporous polymer network and an o-hydro…
View article: Gas separation membranes obtained by partial pyrolysis of polyimides exhibiting polyethylene oxide moieties
Gas separation membranes obtained by partial pyrolysis of polyimides exhibiting polyethylene oxide moieties Open
Aromatic copolyimides (PIx) and aromatic-aliphatic copolyimides (PIxEOy) were synthesized by reacting 4,4′-(hexafluoroisopropylidene) diphthalic anhydride (6FDA) with mixtures obtained from 2,2′-bis(4-aminophenyl)hexafluoropropane (6FpDA),…
View article: Hydrogen Recovery by Mixed Matrix Membranes Made from 6FCl-APAF HPA with Different Contents of a Porous Polymer Network and Their Thermal Rearrangement
Hydrogen Recovery by Mixed Matrix Membranes Made from 6FCl-APAF HPA with Different Contents of a Porous Polymer Network and Their Thermal Rearrangement Open
Mixed matrix membranes (MMMs) consisting of a blend of a hydroxypolyamide (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). Here, the…
View article: Gas Separation by Mixed Matrix Membranes with Porous Organic Polymer Inclusions within o-Hydroxypolyamides Containing m-Terphenyl Moieties
Gas Separation by Mixed Matrix Membranes with Porous Organic Polymer Inclusions within o-Hydroxypolyamides Containing m-Terphenyl Moieties Open
A hydroxypolyamide (HPA) manufactured from 2,2-bis(3-amino-4-hydroxy phenyl)-hexafluoropropane (APAF) diamine and 5′-terbutyl-m-terphenyl-4,4′′-dicarboxylic acid chloride (tBTpCl), and a copolyimide produced by stochiometric copolymerizati…
View article: Efficient access to polysubstituted tetrahydrofurans by electrophilic cyclization of vinylsilyl alcohols
Efficient access to polysubstituted tetrahydrofurans by electrophilic cyclization of vinylsilyl alcohols Open
Stereocontrolled access to polysubstituted tetrahydrofurans from organosilanes.