1M proprietary end-capped

1-Material:                                           OS0422/ PBDTTT-C-T

Chemical Name:                                 Poly[1-(6-{4,8-bis[(2-ethylhexyl)oxy]-6-methylbenzo[1,2-b:4,5-b′]dithiophen-2-yl}-3-fluoro-4-methylthieno[3,4-b]thiophen-2-yl)-1-octanone]

CAS #                                                 1393932-53-0

Appearance:                                        Shine purple fiber-like solid

Molecular weight (GPC):                    ~100K (Mw, PS Standard), PDI~2.5

Solubility:                                            Soluble in CHCl3, Chlorobenzene(CB) and Dichlorobenzene(ODCB).

NMR analysis:                                     Structure confirmed.

Assay:                                                 99+% (basing on NMRs of monomers)