Fig. 5 | Polymer Journal

Fig. 5

From: Cationic ring-opening copolymerization of a cyclic acetal and γ-butyrolactone: monomer sequence transformation and polymerization–depolymerization control by vacuuming or temperature changes

Fig. 5

ESI-MS spectrum of the product obtained by the copolymerization of MDOP and γBL after the temperature was increased to 90 °C (see Fig. 4 for the polymerization conditions). †Various structures containing ethylidene or butylenedioxy units are possibly present (see Scheme S1)

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