Abstract:
Disclosed are novel saturated polyether compounds comprised of n units of residue (1) and m units of residue (2), wherein (i) residues (1) and (2) have the structures (1) and (2); (ii) the total value of n + m is 2 to 70 and m/(n + m) is 0.05 to 0.98; (ii) at least 98 percent of the terminal hydroxyl groups of the polyether have the structure (3) or (4). The polyethers are obtained by first polymerizing 3,4-epoxy-1-butene to produce unsaturated polyether precursors comprising residues (1A) and (2A) having the structures (1A) and (2A), and then hydrogenating the unsaturated polyether precursors. The hydrogenation advantageously is performed in the presence of a nickel hydrogenation catalyst.
Abstract:
Disclosed are novel polyether compounds obtained by the reaction or polymerization of 3,4-epoxy-1-butene in the presence of an acidic catalyst and a nucleophilic initiator compound. The polyether compounds comprise n units of residue (1) and m units of residue (2), wherein the total value of n + m is 2 to 70, n/(n + m) is a value in the range of 0.70 to 0.95, and residues (1) and (2) have the structures (1 and 2).
Abstract:
Disclosed are novel saturated polyether compounds comprised of n units of residue (1) and m units of residue (2), wherein (i) residues (1) and (2) have the structures (1) and (2); (ii) the total value of n + m is 2 to 70 and m/(n + m) is 0.05 to 0.98; (ii) at least 98 percent of the terminal hydroxyl groups of the polyether have the structure (3) or (4). The polyethers are obtained by first polymerizing 3,4-epoxy-1-butene to produce unsaturated polyether precursors comprising residues (1A) and (2A) having the structures (1A) and (2A), and then hydrogenating the unsaturated polyether precursors. The hydrogenation advantageously is performed in the presence of a nickel hydrogenation catalyst.
Abstract:
Disclosed are novel polyether compounds obtained by the reaction or polymerization of 3,4-epoxy-1-butene in the presence of an acidic catalyst and a nucleophilic initiator compound. The polyether compounds comprise n units of residue (1) and m units of residue (2), wherein the total value of n + m is 2 to 70, n/(n + m) is a value in the range of 0.70 to 0.95, and residues (1) and (2) have the structures (1 and 2).
Abstract:
Disclosed are novel polyether compounds obtained by the reaction or polymerization of 3,4-epoxy-1-butene in the presence of an acidic catalyst and a nucleophilic initiator compound. The polyether compounds comprise n units of residue (1) and m units of residue (2), wherein the total value of n + m is 2 to 70, n/(n + m) is a value in the range of 0.70 to 0.95, and residues (1) and (2) have the structures (1 and 2).