ZONGQIAN WANG, HAIWEI YANG, JIAN XING, ZHI LIU*
Journal of Polymer Materials, Vol.36, No.2, pp. 149-159, 2019, DOI:10.32381/JPM.2019.36.02.4
Abstract Colored silk fibroin (SF) film can change the proportion of transmitted light composition and
therefore shows potential application in optoelectronics area. However, few methods are reported
for the preparation of colored SF film with good color fastness. Herein, colored SF film was
prepared by coupling modification dyeing (CM-dyeing) of SF tyrosine residues in solution. SF
film shows excellent color fastness due to the formation of the azo covalent bond formed by
electrophilic substitution reaction between SF tyrosine residues and aniline diazonium salt.
Furthermore, compared with the undyed film, the dyed SF film is effectively preserved More >
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