Table 1 Microwave-assisted PFO synthesis via Suzuki polycondensation at standard and SPS mode.

From: PdNPs/NiNWs as a welding tool for the synthesis of polyfluorene derivatives by Suzuki polycondensation under microwave radiation

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No

Mode

Power [W]

Base/Conc

Temp. [°C]

Yield [%]

TOF [h-1]

Mn [kg/mol]

Mw [kg/mol]

Đ

Degree of polymerization

1

S

0–200

Na2CO3/1 M

80

0

–

–

–

–

–

2

S

0–200

Na2CO3/1 M

110

62

1793

1.88

3.06

1.63

5

3

S

0–200

Na2CO3/1 M

130

57

1648

8.08

11.31

1.40

21

4

S

0–200

K2CO3/1 M

80

34

983

3.14

3.99

1.27

8

5

S

0–200

K2CO3/1 M

110

69

1995

5.25

8.45

1.61

14

6

S

0–200

K2CO3/1 M

130

75

2168

4.56

6.61

1.45

12

7

SPS

80

Na2CO3/1 M

75–80

0

–

–

–

–

–

8

SPS

80

Na2CO3/1 M

105–110

82

2371

8.32

16.31

1.96

21

9

SPS

80

Na2CO3/1 M

125–130

41

1185

4.95

6.68

1.35

13

10

SPS

80

K2CO3/1 M

75–80

51

1475

3.45

4.59

1.33

9

11

SPS

80

K2CO3/1 M

105–110

69

1995

6.61

11.90

1.80

17

12

SPS

80

K2CO3/1 M

125–130

60

1735

6.19

8.66

1.40

16

13

SPS

100

Na2CO3/1 M

105–110

88

2544

14.32

25.99

1.82

37

14

SPS

120

Na2CO3/1 M

105–110

78

2255

8.37

12.67

1.51

22

  1. Reaction conditions: 0.12 mmol of diarylbromide, 0.12 mmol of diarylboronate ester, 2 mL of base solution, 2 mL of toluene, 1 drop of Alliquat 336, and 10 mg of PdNPs/NiNWs catalyst. The reaction was carried out for 1 h. The degree of polymerization was estimated by dividing Mn by monomer mass (0.388 kg/mol).
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