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Triple‐Responsive Polyampholytic Graft Copolymers as Smart Sensors with Varying Output
Author(s) -
Max Johannes B.,
Nabiyan Afshin,
Eichhorn Jonas,
Schacher Felix H.
Publication year - 2021
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.202000671
Subject(s) - copolymer , surface plasmon resonance , materials science , dehydroalanine , cloud point , noble metal , metal , polymer chemistry , chemical engineering , chemistry , combinatorial chemistry , nanotechnology , nanoparticle , polymer , organic chemistry , aqueous solution , biochemistry , amino acid , engineering , metallurgy , composite material
Three triggers result in two measurable outputs from polymeric sensors: multiresponsive polyampholytic graft copolymers respond to pH‐value and temperature, as well as the type and concentration of metal cations and therefore, allow the transformation of external triggers into simply measurable outputs (cloud point temperature (T CP ) and surface plasmon resonance (SPR) of encapsulated silver nanoparticles). The synthesis relies on poly(dehydroalanine) (PDha) as the reactive backbone and gives straightforward access to materials with tunable composition and output. In particular, a rather high sensitivity toward the presence of Cu 2+ , Co 2+ , and Pb 2+ metal cations is found.