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. Author manuscript; available in PMC: 2009 Oct 22.
Published in final edited form as: J Polym Sci A Polym Chem. 2008 Sep 25;46(21):7246–7257. doi: 10.1002/pola.23031

Table 1.

Polymerization of NAS at various [M]/[CTA] ratiosa

Run No [M]/[CTA] [CTA]/[Initiator] Polymerization time (h) Conversionb(mol %) DP theoreticalc ASEC resultsd
Mn (kDa) Mw (kDa) PD DPe
1 100 10 1.5 77 77 5.97 6.27 1.05 84
2 200 10 2.0 60 120 8.96 9.85 1.10 126
3 300 5 2.5 48 144 1.12 1.28 1.14 158
4 400 5 3.5 48 192 1.45 1.62 1.12 204
a

Polymerization conditions: NAS (1.34 g) in DMF (4 mL, 2M solution), Temp = 70 °C

b

NAS conversion determined by 1H NMR

c

Determined based on conversion

d

Determined by ASEC after ammonolysis

e

Calculated based on Mn