69 research outputs found
Surface active semifluorinated diblock copolymers prepared by group transfer polymerization
No full textSynthesis and Properties of Polymers Based on Oligo(hexafluoropropene oxide) Containing Methacrylates and Copolymers with Methyl Methacrylate
Full text linkSynthesis and characterization of semifluorinated polymers via group transfer polymerization
Full text linkSynthesis and Properties of Polymers Based on Oligo(hexafluoropropene oxide) Containing Methacrylates and Copolymers with Methyl Methacrylate
No full textFormation of rigid polyurethane foams with semi-fluorinated diblock copolymeric surfactants
Full text linkComplexation of poly(ethylene oxide) with poly(acrylic acid-co-hydroxyethyl methacrylate)s
Get PDFRandom acrylic acid/hydroxyethyl methacrylate (AA/HEMA) copolymers were synthesized to study the influence of non-ionic (HEMA) structure defects introduced in poly(acrylic acid) on the complex formation with PEO ( 23200) at pH 3¿3.5 in aqueous solution. Complex formation as studied with potentiometric titration (concentration 0.01¿0.03 M monomer residues) was increasingly impeded when the molar ratio of HEMA to AA units in the polymers increased. Copolymers of AA and HEMA with molar ratios 30:1, 10:1 and 3:1 were used in this study. It was shown that in the copolymers the number of carboxylic acid groups taking part in complexation decreased with increasing amounts of HEMA in the copolymer. However, with increasing amounts of structure defects the amount of PEO per AA residue (at equilibrium complexation) increased, suggesting less efficient packing of PEO on the acrylic copolymer chai
Polystyrene-Polyperfluorooctylethyl acrylate Diblock Copolymers: The Effect of Dilution of the Fluorinated Mesogenic Chains on Bulk and Surface Properties
No full textFluorinated segmented polyurethane anionomers for water-oil repellent surface treatments of cellulosic substrates
No full textFluorinated segmented polyurethane anionomers for water-oil repellent surface treatments of cellulosic substrates
No full textComplexation of poly(ethylene oxide) with poly(acrylic acid-co-hydroxyethyl methacrylate)s
Get PDFRandom acrylic acid/hydroxyethyl methacrylate (AA/HEMA) copolymers were synthesized to study the influence of non-ionic (HEMA) structure defects introduced in poly(acrylic acid) on the complex formation with PEO ( 23200) at pH 3¿3.5 in aqueous solution. Complex formation as studied with potentiometric titration (concentration 0.01¿0.03 M monomer residues) was increasingly impeded when the molar ratio of HEMA to AA units in the polymers increased. Copolymers of AA and HEMA with molar ratios 30:1, 10:1 and 3:1 were used in this study. It was shown that in the copolymers the number of carboxylic acid groups taking part in complexation decreased with increasing amounts of HEMA in the copolymer. However, with increasing amounts of structure defects the amount of PEO per AA residue (at equilibrium complexation) increased, suggesting less efficient packing of PEO on the acrylic copolymer chai
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