A series of polymer-polyol dispersions have been prepared from polyether polyol and poly(styrene-acrylonitrile). The rheological behavior and particle size of the dispersions have been measured. The flow curves of the...A series of polymer-polyol dispersions have been prepared from polyether polyol and poly(styrene-acrylonitrile). The rheological behavior and particle size of the dispersions have been measured. The flow curves of the dispersions indicated the non-Newtonian behavior of shear thickening to shear thinning. The particle size in dispersions are affected by macromer content, temperature and stirring rate in preparation.展开更多
In situ production of low-density polymer foam in a capillary has been realized by the radical polymerization of PETA solution combined with CO 2 supercritical drying.The dependence of foam density,cell size on the na...In situ production of low-density polymer foam in a capillary has been realized by the radical polymerization of PETA solution combined with CO 2 supercritical drying.The dependence of foam density,cell size on the nature of solvent and monomer,and the influence of O 2 on polymerization rate have been discussed.展开更多
文摘A series of polymer-polyol dispersions have been prepared from polyether polyol and poly(styrene-acrylonitrile). The rheological behavior and particle size of the dispersions have been measured. The flow curves of the dispersions indicated the non-Newtonian behavior of shear thickening to shear thinning. The particle size in dispersions are affected by macromer content, temperature and stirring rate in preparation.
文摘In situ production of low-density polymer foam in a capillary has been realized by the radical polymerization of PETA solution combined with CO 2 supercritical drying.The dependence of foam density,cell size on the nature of solvent and monomer,and the influence of O 2 on polymerization rate have been discussed.
