Polyethyleneglycols can be used as effective phase transfer catalyst in halogen exchange fluorination.
聚乙二醇可作为卤素交换氟化反应有效的相转移催化剂。
2
Immobilized lipase from Candida sp. 9 on trueran was used to catalyze fatty acids and polyethyleneglycols (PEGs) to form the corresponding esters.
固定化假丝酵母(Candidasp .) - 9脂肪酶催化脂肪酸和不同聚合度的乙二醇形成酯。
3
The ultra-molecule of polyethyleneglycols(PEG)has some extent phase change after heating and cooling cycles. The change of macroscopical properties leads to special thermal activity.