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1 Experimental section 1.1 General information All manipulations of air- and/or moisture-sensitive compounds were performed under nitrogen atmosphere using standard Schlenk techniques. 1H NMR and 13 C NMR spectra were recorded on a Varian XL-300 MHz spectrometer with TMS as the internal standard. Mass spectra were obtained using a HP5959 A spectrometer. IR spectra were recorded using a Nicolet AV-360 spectrometer. Elemental analysis was performed by the Analytical Laboratory of Shanghai Institute of Organic Chemistry(CAS). Mn, Mw, and Mw/Mn values of polymers were determined with a Waters Alliance GPC 2000 series at
1 Experimental section 1.1 General information All manipulations of air and / or moisture-sensitive compounds were performed under nitrogen atmosphere using standard Schlenk techniques. 1H NMR and 13 C NMR spectra were recorded on a Varian XL-300 MHz spectrometer with TMS as the internal standard. Mass spectra were obtained using a HP5959 A spectrometer. IR spectra were recorded using a Nicolet AV-360 spectrometer. Elemental analysis was performed by the Analytical Laboratory of Shanghai Institute of Organic Chemistry (CAS). Mn, Mw, and Mw / Mn values of polymers were determined with a Waters Alliance GPC 2000 series at