Diarylborinic acids catalyze the formation of linear polyesters from glycerol, a trifunctional, carbohydrate-based monomer. The selective activation of 1,2-diols over isolated alcohols by the organoboron catalyst results in polymers that are essentially free of branching or cross-linking and possess a high fraction of 1,3-enchained glycerol units, as assessed by ¹H and ¹³C NMR spectroscopy. The ability to generate well-defined polyester architectures from glycerol is significant in light of the numerous applications of such macromolecules, particularly in the biomedical area. Isomerization, post-polymerization functionalization and controlled cross-linking reactions of the obtained linear poly(glycerol esters) are demonstrated.

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甘油与二酰氯的催化剂控制的缩聚反应：三官能团单体制得的线性聚酯

二芳基硼酸催化由甘油（一种三官能，基于碳水化合物的单体）形成线性聚酯。通过¹ H和¹³评估，有机硼催化剂在分离的醇上对1,2-二醇的选择性活化导致聚合物基本上没有分支或交联，并具有高比例的1,3-链甘油单元。13 C NMR光谱。鉴于这种大分子的大量应用，特别是在生物医学领域，由甘油产生明确的聚酯结构的能力非常重要。证明了所获得的线性聚（甘油酯）的异构化，聚合后官能化和受控的交联反应。