Abstract
AbstractNew poly(sodium carboxylate)s, containing monosaccharide side groups with ether linkages to the main chain, are presented as substitutes for water‐soluble homo‐ and copolymers of acrylic acid. Neutral and ionic allyl glycoside monomers, namely allyl‐α‐D‐galactopyranoside and allyl‐β‐D‐glucofuranosidurono‐6,3‐lactone, were synthesized by Fischer glycosidation. These monomers were copolymerized with maleic anhydride and itaconic acid in aqueous and nonaqueous solution. The corresponding copolymers with different structures, degrees of functionalization, and charge densities were characterized by 13C NMR spectroscopy, molecular‐weight measurements, and intrinsic viscosity [η] determination. From these, the monomer reactivity ratios and Mark–Houwink relations were established (see Figure). Copolymerization curves of maleic acid copolymers 6 and 10. M1: mole fraction of allyl monomer 2β and 5α in the feed; m1: mole fraction of allyl monomer in the copolymer. The dashed line shows the course of an ideal alternating copolymerization (excepted: M1 = 0 mol‐%, M1 = 100 mol‐%).magnified imageCopolymerization curves of maleic acid copolymers 6 and 10. M1: mole fraction of allyl monomer 2β and 5α in the feed; m1: mole fraction of allyl monomer in the copolymer. The dashed line shows the course of an ideal alternating copolymerization (excepted: M1 = 0 mol‐%, M1 = 100 mol‐%).
Published Version
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