Polymeric humidity sensor using polyelectrolyte derived from poly(amide-sulfone)s | Zendy

Young-Min Jeon | Zendy; MyoungSeon Gong | Zendy

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Polymeric humidity sensor using polyelectrolyte derived from poly(amide-sulfone)s

Author(s) -

Young-Min Jeon,

MyoungSeon Gong

Publication year - 2009

Publication title -

macromolecular research

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.491

H-Index - 49

eISSN - 2092-7673

pISSN - 1598-5032

DOI - 10.1007/bf03218684

Subject(s) - materials science , sulfone , polyelectrolyte , substrate (aquarium) , humidity , polymer chemistry , relative humidity , membrane , chemical engineering , covalent bond , polymer , composite material , organic chemistry , chemistry , biochemistry , oceanography , physics , engineering , thermodynamics , geology

New polyelectrolytes derived from poly(amide-sulfone)s and 1,5-dibromopentane were simultaneously fabricated on the electrode by the crosslinking reaction. The substrate was pretreated with a bromoalkyl-containing, silane-coupling agent to anchor the humidity-sensitive membrane to the substrate through the covalent bond. When the resistance dependence on the relative humidity of the crosslinked poly(amide-sulfone)s was measured, the resistance varied by three orders of magnitude between 20%RH and 90%RH, which was the required RH range for a humidity sensor operating at ambient humidity. Their water durability, long-term stabilities under various environments, hysteresis and response and recovery times were measured and evaluated as a humidity-sensing membrane.

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