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Structural modification of natural fibers for fluorescent probe application
Author(s) -
Kohila Venkatraman,
Jancirani Asirvatham,
Meenarathi Balakrishnan,
Parthasarathy Vellaichamy,
Anbarasan Ramasamy
Publication year - 2021
Publication title -
polymers for advanced technologies
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.61
H-Index - 90
eISSN - 1099-1581
pISSN - 1042-7147
DOI - 10.1002/pat.5333
Subject(s) - materials science , oxidizing agent , grafting , absorbance , polymerization , fiber , absorption spectroscopy , fluorescence , polymer , reaction rate constant , polymer chemistry , contact angle , analytical chemistry (journal) , synthetic fiber , cyclic voltammetry , composite material , chemistry , kinetics , electrochemistry , organic chemistry , electrode , optics , physics , chromatography , quantum mechanics
In situ chemical polymerization of acid fuchsin (AF) dye in the presence of Fe 3+ as a complexing and oxidizing agent in the presence of two different textile fibers such as silk and rayon were carried out by varying the experimental conditions in the N 2 ambiance. The synthesized polymer systems were subjected to various analytical measurements such as FT‐IR, FES, SEM, TEM, GPC, UV‐visible spectroscopy, cyclic voltammetry, and water contact angle to assess their structure‐property relation. The electrical conductivity values of the AF grafted natural fibers were measured. The rate of grafting ( R G ) was calculated by using the absorption and emission spectra. The SO 2 stretching of AF is seen at 1230 cm −1 in the FT‐IR spectrum. The order of grafting reaction was calculated as 0.99 based on absorbance spectrum, which proved the first‐order reaction with respect to Fe 3+ concentration. The binding site and binding constant values were determined. The energy of activation ( E a ) for the AF grafted rayon fiber was estimated as 30.72 kJ/mole. A plausible reaction mechanism was proposed based on the obtained experimental results.