  Water surfaces catalyze some organic reactions more effectively, making them
unique for 2D organic material synthesis. This report introduces a new
synthesis method via surfactant-monolayer-assisted interfacial synthesis on
water surfaces for ring-opening polymerization of pyrrole, producing distinct
polypyrrole derivatives with polyacetylene backbones and ionic substitutions.
The synthesis result in quasi 2D polyacetylene (q2DPA) film with enhanced
charge transport behavior. We employed time-of-flight photoconductivity (TOFP)
measurements using pulsed laser light of tunable wavelength for photoexcitation
of the charge carriers within the q2DPA film. The charge transport was measured
in the lateral direction as a function of external bias voltage ranging from 0
V to 200 V. We observed high electron mobility ({\mu}) of q2DPA reaching values
of 375 cm2 V-1 s-1 at bias voltage Vb = -20V and photon energy of 3.8 eV.
