Organic Membranes for Selectivity Enhancement of Metal Oxide Gas Sensors

Figure 1

Molecular configurations of homopolymers used: (a) polyethylene (PE), (b) polypropylene (PP), (c) poly-4-methylpentene-1 (PMP), (d) polycarbonate (PC), (e) polyethylenterephthalat (PET), (f) polyethylene naphthalate (PEN), (g) polyetheretherketone (PEEK), (h) polyamide (PA6), (i) polyimide (PI), (j) polyetherimide (PEI), and (k) polyethersulfone (PES).

(a)

(b)

(c)

(d)

(e)

(f)

(g)

(h)

(i)

(j)

(k)