| abstract |
The invention discloses a copolymer composed of phenyl glycidyl ether and alkylene oxide repeating units. Some of the copolymers contain difunctional or polyfunctional nucleophilic initiators and repeating units of phenyl glycidyl ether and alkylene oxide. Difunctional or polyfunctional nucleophilic initiators are alcohols, phenols, amines, thiols, thiophenols, sulfinic acids or their deprotonated products. Other copolymers contain a monofunctional nucleophilic initiator selected from the group consisting of mercapto groups, thiophenols, arylated phenols, sulfinic acids, secondary amines, C10 - C20 terpene alcohols and their deprotonated products. Pigment dispersions containing the copolymers are also disclosed. The copolymers meet the growing needs of the industry with their ease of manufacture, structural diversity, and performance properties ideal for dispersing a wide variety of organic and inorganic pigments. Agricultural applications of the copolymers are also disclosed. |