Publication Details (including relevant citation information):
C.R. Snyder, J.S. Henry and D.M. DeLongchamp, Macromolecules 44, 7088-7091 (2011).
This paper outlines the effect of regiodefects in poly(3-hexylthiophene-2,5-diyl) (P3HT) on the semicrystalline microstructure, i.e., lamellar thickness and distribution, through
validation of Flory's theoretical framework. The approach is based on equilibrium copolymer theory, where P3HT is treated as a copolymer of crystallizing head-tail couplings and non-crystallizing head-head couplings (regiodefects). The agreement between the predictions of equilibrium copolymer theory and experimental results are demonstrated for P3HTs of controlled regioregularity. As a result, the degree of regioregularity must be reported for any imperfectly regioregular semiconducting polymer because of its strong effect on morphology and to ensure meaningful comparison between studies.
Address (URL): http://dx.doi.org/10.1021/ma201604n