Search results for "Liquid crystalline"

showing 5 items of 85 documents

Liquid Crystalline Copolyester Made from Recycled Polyethylene Terephthalate and p-Acetoxybenzoic Acid: Synthesis, Characterization and Blending with…

2013

chemistry.chemical_compoundMaterials sciencechemistryMechanics of MaterialsLiquid crystallineMechanical EngineeringPolyethylene terephthalateGeneral Materials ScienceComposite materialCopolyesterCharacterization (materials science)Key Engineering Materials
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Polyreactions in oriented systems, VIII.. Polymerization of a liquid crystalline monomer under the influence of a high magnetic field

1975

chemistry.chemical_compoundMonomerMaterials sciencechemistryPolymerizationLiquid crystallinePolymer chemistryGeneral EngineeringGeneral Materials ScienceMagnetic fieldJournal of Polymer Science: Polymer Letters Edition
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1987

Liquid-crystalline copolymers with covalently attached dichroic dyes were synthesized and characterized. Copolymers with high anthraquinone and trisazo-dye content were obtained by copolymerization of dye monomers with 4-cyanophenyl 4-(6-acryloyloxyhexyloxy)benzoate (1) and 6-acryloyloxyhexyl 4-(trans-4-propylcyclohexyl)benzoate (2). Particular attention is given to the influence of the dye content and the dye structure on the liquid-crystalline behavior of the copolymers.

chemistry.chemical_compoundMonomerchemistryLiquid crystalCovalent bondLiquid crystallinePolymer chemistryCopolymerDichroic glassAnthraquinoneCharacterization (materials science)Die Makromolekulare Chemie
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ChemInform Abstract: Synthesis of Tripyreno[2,3,4,-abc:2,3,4-ghi:2,3,4-mno][18]annulenes.

2001

The title compounds were prepared in a multi-step synthesis in which primarily the pyrene building blocks were formed (1,2 11a,b). The final reaction step 11a,b 12a,b consisted of a threefold trans selective cyclocondensation process that generated the central 18-membered ring. Hexyloxy or dodecyloxy sidechains attached on the periphery led to the formation of liquid crystalline phases.

chemistry.chemical_compoundchemistryReaction stepLiquid crystallinePolymer chemistryPyreneOrganic chemistryGeneral MedicineAnnuleneRing (chemistry)ChemInform
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On the mechanism of compatibilization of polyolefin/liquid crystalline polymer blends with graft copolymers

2000

The compatibilization mechanism of some compatibilizers for blends of polyolefins with a liquid crystalline polymer (LCP) was studied. Polyethylene (PE) and polypropylene (PP) were blended with a semirigid LCP (SBH) in a batch mixer, either with and without compatibilizers. The latter were two commercially available samples of functionalized polyolefins, that is, a PE-g-MA (HDM) and a PP-g-AA (Polybond 1001) copolymer and some purposely synthesized PE-g-LCP and PP-g-LCP copolymers. Microtomed films of the binary and the ternary blends were annealed at 240 degrees C on the hot stage of a polarizing microscope and the changes undergone by their morphology were recorded as a function of time. …

coalescenceSettore ING-IND/22 - Scienza E Tecnologia Dei Materialicompatibilizationmorphologypolyolefin/liquid crystalline polymer blend
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