Citation: Yu-sheng Qin, Li-jie Chen, Xian-hong Wang, Xiao-jiang Zhao, Fo-song Wang. ALTERNATING COPOLYMERIZATION OF CYCLOHEXENE OXIDE AND CARBON DIOXIDE UNDER COBALT PORPHYRIN CATALYST[J]. Chinese Journal of Polymer Science, ;2011, 29(5): 602-608. doi: 10.1007/s10118-011-1073-3 shu

ALTERNATING COPOLYMERIZATION OF CYCLOHEXENE OXIDE AND CARBON DIOXIDE UNDER COBALT PORPHYRIN CATALYST

Received Date: 9 October 2010
Revised Date: 1 December 2010

Fund Project: This work was financially supported by the National Natural Science Foundation of China (Nos. 20634040 and 50903084).

Cobalt porphyrin complexes (TPPCoIIIX) (TPP = 5,10,15,20-tetraphenyl-porphyrin; X = halide) in combination with bis(triphenylphosphine) iminium chloride (PPNCl) were used for the copolymerization of cyclohexene oxide and CO2. The highest turnover frequency of 67.2 h-1 was achieved after 13 h at 20C, and the obtained poly(1,2-cyclohexylene carbonate) (PCHC) showed number average molecular weight (Mn) of 10 103. Though the obtained PCHC showed atactic structure, the m-centered tetrads content reached 58.1% at CO2 pressure of 1.0 MPa, and decreased to 51.9% at CO2 pressure of 6.0 MPa, indicating that it was inclined to form atactic polymer at high CO2 pressure.
- Carbon dioxide
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