Gelatin-Modified Polyurethanes for Soft Tissue Scaffold

Table 5

Saline and distilled water sorption of PU foams prepared with different chain extenders and various amounts of gelatin.

Symbol	Sorption (%)
	3rd day		7th day		14th day
	Saline	Distilled water	Saline	Distilled water	Saline	Distilled water
BDO chain extender
PU-1/BDO/G0	17±4	Degradation	Degradation	Degradation	Degradation	Degradation
PU-1/BDO/G10	27±1	16±1	21±2	10±4	14±2	8±2
PU-1/BDO/G20	33±6	26±6	24±2	23±2	15±7	19±4
PU-1/BDO/G30	27±1	20±3	17±1	16±2	9±1	13±3
EHEE chain extender
PU-1/EHEE/G0	4±1	6±2	2±1	3±2	1±1	2±1
PU-1/EHEE/G10	7±2	9±1	3±2	7±1	2±1	4±1
PU-1/EHEE/G20	6±2	13±1	5±1	9±1	3±1	6±1
PU-1/EHEE/G30	4±1	10±1	2±1	7±2	1.6±1	4±2