Isao Komasawa

Composite nano-CdS-polyurethane transparent films

Nano-CdS particles, as formed in reverse micelles, have been immobilized into polyurethane (PU), via surface-modification with 4-hydroxythiophenol or 2-mercaptoethanol, followed by polyaddition of ethylene glycol with toluenediyl 2,4-diisocyanate: the resulting composite, CdS-PU, obtained as powder, can be dissolved in organic solvents such as DMF and formed to make nano-CdS-containing transparent PU films, which show a quantum-size effect and are utilized for photocatalytic H n 2 n generation.

Immobilization of semiconductor nanoparticles formed in reverse micelles into polyurea via in situ polymerization of diisocyanates

Nanoparticles of CdS, ZnS, TiO2 or AgI, formed in reverse micelles, have been immobilized into polyurea via in situ polymerization of hexamethylene diisocyanate; the CdS– or ZnS–polyurea composites obtained were utilized as photocatalysts.

Preparation of nano-CdS–polyurethane composites via in situ polymerization in reverse micellar systems

Nano-CdS particles, formed in reverse micelles containing nethylene glycol, have been immobilized in polyurethane, via an in nsitu polymerization of ethylene glycol with hexamethylene diisocyanate: nthe resulting composite can be utilized as a photocatalyst and processed to nmake a transparent film.