Abstract
The copolymerization of oxetane with glutaric anhydride was found to proceed with bulky titanium bisphenolate (1) as the initiator. The 1H NMR spectrum of the produced copolymer shows that the copolymer contains both alternating units and oxytrimethylene units in the polymer main chain. 1 was also effective for the copolymerization of oxetane with other cyclic acid anhydrides, affording the corresponding copolymers. With the titanium bisalkolate complex (4), a copolymer rich in alternating sequences was obtained.
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