Table 3. The content of different silica species and polymerization degree (D) of the extracted ethane-bridged PMO materials.

PMO Sample	Size (nm)	Silica Species (%)			Polymerization Degree (%)
		T1	T2	T3
1	150	2.6	46.6	50.8	82.7
2	200	2.7	48.7	48.6	82.0
3	250	2.7	47.3	50.0	82.5
4	400	2.6	43.8	53.6	83.7
5	600	2.1	44.2	53.2	83.5