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. Author manuscript; available in PMC: 2021 Oct 13.
Published in final edited form as: Macromolecules. 2020 Sep 1;53(19):8352–8359. doi: 10.1021/acs.macromol.0c01367

Table 4.

Synthesis of Molecular Brush Poly(EtVCP-PDMS)a

graphic file with name nihms-1662596-t0004.jpg
entry macromonomer [M]/[I]/[PC] time (h) convb (%) Mnc (kDa) Ð (Mw/Mn)c I*d (%) SLb (%)
1 MM-1 500/10/1 12 95 67.4 1.09 99 77
2 MM-1 1000/10/1 12 95 111.0 1.26 116 66
3 MM-1 1000/5/1 12 90 102.7 1.47 245 63
4 MM-1 2000/10/1 12 78 141.7 1.41 149 60
5 MM-1 4000/10/1 12 71 208.8 1.41 184 60
6e MM-2 500/10/1 12 84 84.5 1.14 160 74
7e MM-2 1000/10/1 12 62 98.2 1.25 316 56
8f,g MM-1 500/10/1 12 84 121.2 1.08 49 33
9f,g MM-1 1000/10/1 12 82 165.0 1.10 70 31
10f,h MM-2 500/10/1 12 75 308.7 1.06 61 30
a

Polymerizations performed using 0.2 mmol of EtVCP-PDMS macromonomer, DBMM as the initiator, 0.5 mL of anhydrous EtOAc, and irradiated by white LED at 28 °C.

b

Measured by crude 1H NMR. SL = l/(l + c).

c

Measured by GPC.

d

Initiator efficiency (I*) = Mn,theo/Mn,measured × 100%, where Mn,theo = MW(DBMM) + MW(MM) × conversion × ([MM]/[DBMM]).

e

1.0 mL of EtOAc was used.

f

Polymerization was performed at 60 °C and with 34 W blue LED.

g

2.5 mL of anhydrous EtOAc was used.

h

5.0 mL of anhydrous EtOAc was used.