Abstract

Biopolymers are sustainable materials derived from renewable sources that have relevant and industrially attractive properties such as biodegradability, biocompatibility and antimicrobial effect. Thus, these were the target of several experimental studies, widely published in the literature and used in our daily lives. This paper presents a preliminary investigation on the polyesterification of a malic acid/glycerol mixture in order to obtain the poly(glycerol-co-malic acid) to be evaluated as a bioadhesive. For this, different reaction conditions were evaluated by varying the concentrations of malic acid, glycerol and zinc chloride(II) as catalyst, carried out according to the central composite rotatable design. The polymerizations were monitored by acidity index, hydroxamic acid test and conversion rate and the obtained materials characterized by FTIR. Poly(glycerol-co-malic acid) was obtained in yields of 38 to 68% which show that such method is promising for obtaining this new biopolymer aimed as bioadhesive.

Graphic abstract

中文翻译：

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从可再生资源制备和表征聚甘油-苹果酸的见解

摘要

生物聚合物是衍生自可再生资源的可持续材料，具有相关的工业吸引力，例如生物降解性，生物相容性和抗菌作用。因此，这些是几项实验研究的目标，这些实验研究广泛发表在文献中并用于我们的日常生活中。本文对苹果酸/甘油混合物的聚酯化进行了初步研究，以得到聚（甘油-co-苹果酸）作为生物粘合剂。为此，根据中央复合材料可旋转设计，通过改变苹果酸，甘油和氯化锌（II）的浓度来评估不同的反应条件。通过酸度指数，异羟肟酸试验和转化率监测聚合反应，并通过FTIR表征所获得的材料。获得了聚（甘油-共-苹果酸），产率为38％至68％，这表明这种方法对于获得这种新型的作为生物粘合剂的生物聚合物很有希望。

图形摘要