Photoinduced reversible cross-linking in polymeric matrices

摘要

Recently,the investigation of photoinduced conformational and electronic properties changes in poly(4-vinyl pyridine) (P4VPy)/pyridine system revealed,that under UV-irradiation homogeneous viscous polymer solution turns to well-defined polarly ordered gels tructure,yielding new absorption band,red-shifted emissions,and an increase in photoconductivity.