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. Author manuscript; available in PMC: 2012 Jan 1.
Published in final edited form as: Acta Biomater. 2010 Jul 18;7(1):106–114. doi: 10.1016/j.actbio.2010.07.014

Table 2.

The amount of methacrylic anhydride added to PGM, the resulting DM of PGMma polymers, and physical properties of PGMma polymers and hydrogels. Crosslink density and molecular weight between crosslinks were calculated for 15% hydrogels.

Polymer Amount of
methacrylic
anhydride
added per 1g
of PGM / ml		 DM
(%)		 Mn
(× 104) /
g mol−1 		Mw
(× 104) /
g mol−1 		PDI Density of
polymer /
g cm−3 		Crosslink
density /
mol m−3 		Molecular
weight
between
crosslinks
(× 103) / g mol−1
PGMma1:1 low DM 1 16 1.01 2.58 2.5 1.98±0.02 391 5.06
PGMma1:1 medium DM 2 28 0.94 2.05 2.2 1.96±0.06 423 4.64
PGMma1:1 high DM 4 44 0.83 1.87 2.2 1.98±0.08 496 3.99
PGMma1:2 low DM 2 23 1.14 2.27 2.0 1.85±0.01 324 5.71
PGMma1:2 medium DM 4 28 0.96 1.99 2.1 2.01±0.04 435 4.61