Table 1 Polymerization conditions and molecular weight characteristics of the polymers with different structures.

From: Controlled multi-vinyl monomer homopolymerization through vinyl oligomer combination as a universal approach to hyperbranched architectures

Time (h)

M n (Da) †

M w (Da) †

PDI †

Vinyl conversion (%) ‡

Branch ratio (%) §

Hyperbranched polyBDA (I:M=1:2) ||

 0.5

450

490

1.1

18

~0

 1.0

580

700

1.2

34

4

 2.0

840

1,400

1.6

51

35

 3.5

1,800

6,800

3.7

69

66

Cyclized polyBDA (I:M=1:100)

 1.5

1,100

1,200

1.1

2

14

 3.0

1,600

1,800

1.2

5

15

 5.0

2,900

3,800

1.3

9

18

 10.0

10,500

24,300

2.3

15

24

FRP (I:M=1:2) #

 0.08

  

Gel

  

FRP (I:M=1:100)*

 0.16

  

Gel

  
  1. AA, L-ascorbic acid; PMDETA, 1,1,4,7,7-pentamethyl diethylenetriamine; I, ethyl 2-bromoisobutyrate (EBriB).
  2. †Mn, Mw and PDI are determined by SEC equipped with a refractive index (RI) detector.
  3. ‡Vinyl conversion was calculated by 1H NMR, as seen in Supplementary Fig. S2 and Supplementary equation S1.
  4. §Branch ratios were calculated by 1H NMR, as seen in Supplementary Fig. S3 and Supplementary eq. S2.
  5. ||I/BDA/CuBr2/PMDETA/AA=1:2:0.05:0.05:0.015, Solvent: 2-butanone, [BDA]=1.44 mol l−1, T=60 °C.
  6. I/BDA/CuBr2/PMDETA/AA=1:100:2.5:2.5:0.75, Solvent: 2-butanone, [BDA]=1.44 mol l−1, T=60 °C.
  7. #I/BDA=1:2, I: 1,1′-azobis-cyclohexane carbonitrile (ACCN), Solvent: 2-butanone, [BDA]=1.44 mol l−1, T=70 °C.
  8. *I/BDA=1:100, I: 1,1′-azobis-cyclohexane carbonitrile (ACCN), Solvent: 2-butanone, [BDA]=1.44 mol l−1, T=70 °C.
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