Photo-response behavior of electrospun nanofibers based on spiropyran-cyclodextrin modified polymer.

ABSTRACT: Tunable and durable photochromic materials are a rapidly expanding area of interest, with applications ranging from biomedical devices to industrial-fields. Here we examine electrospun poly (methacrylic acid) PMAA nanofibers covalently modified with the highly photochromic molecule, spiropyran (SP) or a derivate SP which is firstly coupled to a cyclodextrin molecule (βCD_SP). The photochromic properties of the starting materials and of the nanofibers were investigated. βCD_SP, PMAA_SP and PMAA-βCD_SP polymers exhibited a reverse photochromism. The kinetic results revealed a faster isomerization process for the βCD_SP molecule, than that for the PMAA-βCD_SP and for the PMAA_SP, the slowest one. The fastest isomerization i

SUBMITTER: De Sousa FB 

PROVIDER: S-EPMC5307972 | biostudies-literature | 2010 Nov

REPOSITORIES: biostudies-literature