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Depolymerization of Trityl End‐Capped Poly(Ethyl Glyoxylate): Potential Applications in Smart Packaging
Author(s) -
Fan Bo,
Salazar Rómulo,
Gillies Elizabeth R.
Publication year - 2018
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/marc.201800173
Subject(s) - depolymerization , polymer chemistry , chemistry , degradation (telecommunications) , nile red , food packaging , organic chemistry , fluorescence , computer science , telecommunications , physics , food science , quantum mechanics
The temperature‐dependent depolymerization of self‐immolative poly(ethyl glyoxylate) (PEtG) capped with triphenylmethyl (trityl) groups is studied and its potential application for smart packaging is explored. PEtGs with four different trityl end‐caps are prepared and found to undergo depolymerization to volatile products from the solid state at different rates depending on temperature and the electron‐donating substituents on the trityl aromatic rings. Through the incorporation of hydrophobic dyes including Nile red and IR‐780, the depolymerization is visualized as a color change of the dye as it changes from a dispersed to aggregated state. The ability of this platform to provide information on thermal history through an easily readable signal makes it promising in smart packaging applications for sensitive products such a food and other cargo that is susceptible to degradation.