Amphiphilic Polyoxazoline Copolymer-Imidazole Complexes as Tailorable Thermal Latent Curing Agents for One-Component Epoxy Resins.

This behavior can be related to the glass transition temperature ( T g ) of the copolymers. As the content of the 2-pentyl side group was increased in the copolymer, T g had a decreasing trend with values of 18 °C and −3 °C for PEOZ–PPeOZ 75:25 1K and PEOZ–PPeOZ 25:75 1K, respectively. 30 In other words, the low T g value and the wax form of the PEOZ–PPeOZ 25:75 1K copolymer have led to the dissolution of the copolymer matrix in DGEBA at lower temperatures and subsequent early release of the entrapped Im compared to the PEOZ–PPeOZ 75:25 1K copolymer.

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