Comprising a polymeric hydrogel metrial with POLYACRYLIC ACID, a Second polymeric material with different polyethylene glycol polyglycol and species with one or more Vinyl functionality; extraction method; gel; Agricultural method comprising providing a hydrogel in a Field, Terren And that includes the hydrogel.

摘要

Gels and gel-containing materials, including hydrogels, are described. A gel can be formed by blending polyacrylic acid (PAA) and a polyglycol, such as polytetramethylene ether glycol (PTMEG) at room temperature and, in some cases, without using a catalyst. The blend material can be used to form soft or hard materials, films and particles. The blend material can be combined with vinyl monomers and polymerize to form a hydrogel. The hydrogel can have a high mechanical strength and high water absorbency.