4-nonylphenol 1 History of engineering & technology 1 IR spectroscopy 1 Lithium salts PMMA 1 adsorption 1 biodegradable polymer 1 crazing 1 cross-linker 1 crystallization behavior 1 electrochemical detection 1 electrolytes 1 fast response and recovery 1 free-ion concentration 1 high pressure 1 humidity sensing 1 in-situ polymerization 1 ionic liquid 1 ionic liquids 1 layered double hydroxide 1 mechanical behavior 1 microwave 1 nanocomposite 1 nanomaterials 1 nucleation 1 permeability 1 plasticizer 1 poly (butylene adipate-co-terephthalate) 1 poly(ionic liquid) 1 poly(ionic liquid)s 1