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Showing 1 to 11 of 11 for “"Ionene"”.
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Ionene and ionene alkyl sulfate stoichiometric complexes
… into mesogenic structures. The [X,Y]-ionenes ([(CH2)XN+(CH3)2(CH2)YN+(CH3)2]nBr-2n) investigated formed stoichiometric complexes with alkyl sulfates. The ionene alkyl sulfate complexes display mesogenicity, i.e. optically isotropic dry complexes underwent lyotropic and thermotropic …
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Synthesis and characterization of high performance polytetrahydrofuran based polyurethane-urea and ionene elastomers
… based segmented polyurethane-urea and ionene elastomers. The urea linkages were effectively introduced to the polyurethane elastomers through an unconventional route which was based on carbamate-isocyanate interactions. The carbamates were generated principally from isocyanate …
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Structure-property behavior of free radical synthesized polydimethylsiloxane-polystyrene block polymers and polytetramethyleneoxide based ionene elastomers
… segmented polytetramethyleneoxide (PTMO) based ionene elastomers were also investigated. The PTMO-dihalide ionenes were obtained through the courtesy of Dr. C. M. Leir in 3M, while the PTMO-dipyridinium ionenes were synthesized by Dr. B. Lee in Prof. McGrath’s research group at VPI&SU. In the …
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Structural and morphological characterization of model elastomeric ion containing polymers
… ionomers, or the segmented ionomers where the ionene polymers serve as an example. The structure-property behavior of all these three types of ionomers have been investigated in this study. The telechelic ionomers were based on either a polyisoprene (PIP) or polybutadiene (PBD) backbone. The …
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Tailoring Intermolecular Interactions for High-Performance Nanocomposites
… nanoparticle composite films.The novel ionene monomer N1,N2-bis(3-(dimethylamino)propyl)oxalamide permitted synthesis of novel oxalamide-containing ammonium ionenes. The hydrogen bonding, charge density, and counter anion tuned the ionene mechanical properties. The ionene structure also …
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Synthesis, Molecular Weight Characterization and Structure-Property Relationships of Ammonium Ionenes
Ammonium ionenes are macromolecules with quaternized nitrogen groups in the main chain. Ionenes are commonly referred to as x,y-ionene, where x and y represent the number of methylene groups between quaternized nitrogens. Synthesis of aliphatic ammonium ionenes has been studied since the early …
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Synthesis and characterization of ammonium ionenes containing hydrogen bonding functionalities
Ammonium ionenes are polycations that have quaternary nitrogens in their macromolecular backbone and are synthesized via step-growth polymerization technique. They offer interesting coulombic properties, and the synthetic design provides control over charge density. Non-covalent interactions …
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Influence of Electrostatic Interactions and Hydrogen Bonding on the Thermal and Mechanical Properties of Step-Growth Polymers
… of novel Michael addition networks, ionene families, and ion-containing polyurethanes are described, with the underlying theme of fundamentally investigating the structure-property relationships of novel, segmented macromolecular architectures. In addition, it was discovered that both …
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The Synthesis of Anionic and Amine Containing Polymers for Potential Gas Separations
… of anionic sulfonated polyimide and polyamide ionenes with negative charges on the polymer backbone were studied. In this study, the monomer amino-N-(4-aminophenyl)sulfonylbenzenesulfonamide was synthesized and reacted with dianhydrides (PMDA, 6FDA) and dichloride containing comonomers …