Science Record

| ~ —— a es ~ ms ! mers 0 2 4. 6 8 10 J2 (4 ; Time (hr.) Fig. 1 Reactions of equiyalent quantity ratio of dibasic acids and ethylene glycol at 150°C.

adipic acid; €——pimelic acid;

succinic acid; @——glutaric acid; ©

@ 8

sebacic acid.

suberic acid; © azelaic acids oO