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. Author manuscript; available in PMC: 2014 Dec 24.
Published in final edited form as: Nat Commun. 2014 Jun 24;5:4095. doi: 10.1038/ncomms5095

Table 1.

Mechanical Properties of Respective Formulations

wt % PEI (RNH2/RCHO)a,b tGel (s) G’ (Pa) Maximum Adhesive
Stress (kPa)
3.5 1.9 (1.8) 19 640 ± 130 2.43 ± 0.91
5.2 2.7 (2.7) 9 1140 ± 250 1.83 ± 0.70
6.9 3.6 (3.6) 7 1740 ± 430 2.76 ± 0.48
10.3 5.4 (5.3) 3 4350 ± 320 2.08 ± 0.21
a.

RNH2/RCHO ratio calculated by colorimetric analysis and NMR in parenthesis.

b.

PDA used in formulation of the adhesives had an Mn = 15.5 kDa and Mw/Mn = 1.4.