Bottleneck for reactive molar mass in the polymerization of propylene oxide initiated with potassium t-butoxide

• Published in: Journal of applied polymer science Vol. 113; no. 6; pp. 3656 - 3660
• Main Authors: Yang, Pengfei, Zhu, Xuwei, Yu, Yanhong, Xia, Yong mei, Li, Tianduo
• Format: Journal Article
• Language: English
• Published: Hoboken Wiley Subscription Services, Inc., A Wiley Company 15.09.2009; Wiley
• Subjects: Alkoxides; anionic polymerization; Applied sciences; Chain transfer; Exact sciences and technology; Fourier transforms; FTIR; Infrared spectroscopy; molecular weight distribution/molar mass distribution; NMR; Organic polymers; Oxides; Physicochemistry of polymers; polyethers; Polymerization; Potassium; Preparation, kinetics, thermodynamics, mechanism and catalysts; Propylene oxide; Ring opening polymerization; Priming activity; Experimental study; Solution polymerization; molecular weight distribution/molar mass distribution; NMR; polyethers; Cyclic ether polymer; Propylene oxide polymer; FTIR; Anionic catalyst; Alkoxide; Anionic polymerization; Kinetics

The anionic polymerization of propylene oxide was investigated with potassium t-butoxide as an initiator, and the solvent hexamethyl phosphoric triamide was used in controlling experiments. The relative molar mass limit of the products was determined as about 2700, and the C==C double bond was found...