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. 2016 Nov 17;8(3):1876–1882. doi: 10.1039/c6sc04477h

Table 3. Copolymerisation of limonene oxide and carbon dioxide with catalyst 1 under different reaction conditions a .

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Entry [LO] : [1] % trans LO V (tol) [mL] Pressure [bar] Temperature [°C] Time [h] Yield [%] Yield trans-LO [%] trans/cis*/trans* b [%] TOF c , d M n (PDI) e [g mol–1]
1 250 84 2 30 25 16 68 81 100 : 0 : 0 60 c 62.000 (1.7)
2 250 84 2 30 40 16 73 88 99.6 : 0.3 : 0 180 c 32.500 (1.9)
3 250 84 2 30 60 16 17 20 94 : 5 : 1 40 c 4.300 (1.6)
4 250 54 2 30 40 16 51 94 96 : 2 : 2 110 c 10.000 (1.3)
5 250 54 2 30 60 16 11 21 95 : 3 : 2 30 c 7.200 (1.7)
6 250 >99 2 30 40 6.5 59 59 100 : 0 : 0 120 c 145.300 (1.3)
7 250 >99 2 30 60 16 26 26 97 : 3 : 0 110 c 56.100 (2.5)
8 500 84 2 30 40 16 46 55 97 : 3 : 0 110 c 19.000 (2.5)
9 500 84 0 30 40 3 35 42 99 : 1 : 0 60 d 24.000 (1.9)
10 500 84 0 30 60 0.66 20 24 95 : 5 : 0 130 d 4.900 (1.9)
11 500 84 0 30 80 3 0 0
12 500 84 0 10 60 3 0 0
13 500 84 0 50 60 0.5 30 36 98 : 2 : 0 310 d 12.800 (1.8)
14 500 84 0 50 60 16 40 50 96 : 4 : 0 15 d 9.500 (2.6)
15 1000 84 0 50 60 3.5 13 16 95 : 5 : 0 40 d 6.000 (2.1)

a Volume (LO) = 5.0 mL (30.5 mmol).

b Selectivity for trans/cis*/trans*-PLimC was determined by 13C NMR spectroscopy (ESI).

c In situ TOF is determined by a calibration curve S5, intensity ν(C Created by potrace 1.16, written by Peter Selinger 2001-2019 O) vs. n(PLimC).

d TOF is defined as TON/time.

e Determined by GPC, calibrated with polystyrene standards in chloroform.