We developed novel photo amphoteric compound generators (PAmGs) as a kind of photo-X-generators (PXGs), such as photo-acid generator (PAG). Onium salts that were prepared here generate sulfanilic acid, taurine, or 1-aminoadamantane-3-sulfonic acid in the photochemical reactions. These PAmGs are watersoluble, and photo-decomposable basic compounds to control pH of aqueous solution from basic to acidic side depending on the photon energy absorbed. The PAmG having aminoadamantane structures acted as a better acid-quencher than others did in polymer film. It has the possibility to enhance the contrast of acid concentration related with the resolution of photoresist using PAG. Furthermore, these water-soluble PAmGs induced the photo gelation of alginate by the pH control.

Fiber-oriented film was prepared by electrospinning method using polyvinyl alcohol with stylbazol quaternized group (PVA-SbQ), and the formation behavior of polyiodine complex in fibers was investigated. From the UV-vis spectra and the Raman spectra, it was revealed that PVA-I � � was formed in the fiber orientated film after staining. It is presumed that in the fiber oriented film, the iodine complexes are aligned in one direction. It is considered that the polyiodine complex is inductively arranged with respect to the orientation of fibers, which contributes to the development of dichroism.