. Author manuscript; available in PMC: 2020 May 11.

Published in final edited form as: Langmuir. 2017 Jun 9;33(24):6167–6181. doi: 10.1021/acs.langmuir.7b01493

Table 1:

Physical Properties of PU Microgel Colloidal Particles and Colloidal Gels

PU	PU Microgel Colloidal Dispersion				PU Microgel Colloidal Gel

	M.W. (kDa)	Size (nm)	Concentration (#/ml)	Zeta potential, ξ (mV)	Volume Fraction (φ)	Elastic Modulus G′ (Pa)	Loss Modulus G″ (Pa)	Peclet # @ 1 Hz

PEG2000-HDI-DTH	60.8	470 ± 80	2.51E¹¹	−5.3 ± 1.7	0.27	7.50	4.00	0.057
PEG1000-HDI-DTH	57.0	1200 ± 250	2.16E¹⁰	−9.0 ± 0.6	0.73	1500	530	0.950
PEG600-HDI-DTH	90.2	2010 ± 300	1.61E¹⁰	−7.0 ±1.0	0.69	2525	1820	4.500
PEG1000-DMPA-HDI-DTH	36.6	985 ± 290	8.73E⁹	−11.0 ± 1.3	0.20	12.0	2.50	0.530
PEG1000-NMDA-HDI-DTH	39.4	1100 ± 500	2.68E¹⁰	−1.6 ± 1.0	0.25	562	72.0	0.730

Concentration and size data are used to calculate volume fractions. Rheological data is taken from figure 4.