Water swollen gels of multiphase block copolymers comprising a hydrophilic continuous phase and hydrophobic domains

Abstract

Abstract 1458584 Treating plants EXXON RESEARCH & ENG CO 18 Jan 1974 [29 Jan 1973] 2441/74 Heading A1E [Also in Divisions Cl and C3] The survival and growth of plants is promoted by mixing a plant growth medium, e.g. soil, sand, peat moss or vermiculite, with a water-retaining block copolymer of defined formulta which contains both hydrophobic and hydrophilic blocks. Example 3 illustrates the germination of radish seeds in a mixture of sand and a water-swollen multi-block polystyrene/polyethylene oxide copolymer. Reference is also made to the direct implantation of seeds in films of the above block copolymers, and laying of the films in a field. This is especially useful in arid and semi-arid areas.

Inventors

No inventors recorded.

Bibliographic Details