Thermal Stabilization of Polyoxymethylene by PEG-Functionalized Hydroxyapatite: Examining the Effects of Reduced Formaldehyde Release and Enhanced Bioactivity

Table 6

The mass of POM and POM/HA-g-PEG 600 samples before and after incubation in PBS and RF.

Sample	Mass []
	Before incubation		After incubation		Mass change []
	PBS	RF	PBS	RF	PBS	RF
POM	0.9403	0.8501	0.9398	0.8501	0.0005	0.0000
POM/2.5% HA-g-PEG 600	0.8839	0.9078	0.8834	0.9067	0.0005	0.0011
POM/5.0% HA-g-PEG 600	0.9529	0.8905	0.9529	0.8903	0.0000	0.0002
POM/10.0% HA-g-PEG 600	0.9606	0.9303	0.9601	0.9297	0.0005	0.0006