Solution 1 H NMR spectra were measured on a Bruker ARX 400 NMR spectrometer using either DMSO-d6 and chloroform-d as solvent and tetramethylsilane (TMS, δ = 0) as an internal reference. Weight-average molecular weights (Mw) and polydispersities (Mw/Mn) of the polymers were estimated on a Waters gel permeation chromatography (GPC) system using THF as eluent. UV absorption spectra were taken on a Shimadzu UV3600PLUS array spectrophotometer. PL spectra were recorded on a Shimadzu RF6000 spectrofluorometer. The fluorescence quantum yields (ΦF) were measured by using a Hamamatsu C11347-12 Quantaurus-QY (C11347-12). The fluorescence lifetime results were taken from Hamamatsu Quantaurus-Tua (C11367-35). IR spectra were recorded on a PerkinElmer 16 PC FTIR spectrophotometer. WAXS measurements were executed by Rigaku Nanopix-SP with an ultrahigh-intensity microfocus rotating anode X-ray generator. The wavelength X-ray is 0.154 nm. The energy of HOMO was measured by using a photoelectron spectroscopy in air (PESA) with an AC-3 spectrometer (RIKEN KEIKI Co., Ltd.).