以丙二醇为起始剂，双金属氰化物络合物（DMC）为催化剂，合成分子量12 000 g/mol和18 000 g/mol的聚醚多元醇。采用傅里叶变换红外光谱（FTIR）、核磁共振氢谱（¹H-NMR）及凝胶渗透色谱（GPC）等方法对产物结构进行表征。超高分子量聚醚多元醇具有分子量分布窄、不饱和度低等特点。探讨了起始剂的含水率、进料速度、聚合反应温度、搅拌转速等因素对聚合反应活性和产品指标的影响。当丙二醇起始剂水分含量 \le0.06%、PO进料速度220~250 g/h、聚合反应温度控制在130~135 ℃之间、催化剂浓度30 mg/kg，能保证产品质量持续稳定。以制备的超高分子量聚醚多元醇为原料合成硅烷改性聚醚树脂（MS树脂）并配制MS胶。结果表明：MS树脂黏度适中，性能优异。

Polyether polyols with molecular weights of 12 000 g/mol and 18 000 g/mol were synthesized with propylene glycol as starting agent and bimetallic cyanide complex (DMC) as catalyst. The structure of the product was characterized by Fourier transform infrared spectroscopy (FTIR), hydrogen nuclear magnetic resonance spectroscopy (¹H-NMR) and gel permeation chromatography (GPC). Ultra high molecular weight polyether polyols have the characteristics of narrow molecular weight distribution and low unsaturation. The effects of initiator moisture content, feed rate, polymerization temperature and stirring speed on polymerization activity and product indexes were discussed. When the water content of propylene glycol initiator is \le 0.06%, the PO feed rate is 220~250 g/h, the polymerization temperature is controlled between 130~135 ℃, and the catalyst concentration is 30 mg/kg, the product quality can be ensured. Silane modified polyether resin (MS resin) was synthesized from the prepared ultra high molecular weight polyether polyol and MS glue was prepared. The results show that MS resin has moderate viscosity and excellent properties.