Biodegradable adhesives are of great scientific and technological interest as an alternative to conventional commercial products, which generally can release toxic substances and take a long time to degrade. Composites using biodegradable polymers synthesized by polycondensation of glycerol and diacids, i.e., poly(glycerol succinate), PGSu, poly(glycerol maleate), PGM, and poly(glycerol maleate-co-succinate), PGMSu, reinforced with cellulose nanocrystals (CNC) were used as adhesives for Angelim (Vatairea heteroptera Ducke). CNC were added at 0, 5, 10 and 20 wt% to the glycerol-derived polymers in order to evaluate their effect on mechanical properties. Polymers and composites were analyzed by differential scanning calorimetry (DSC), thermogravimetric analysis (TGA) and Fourier transform infrared spectroscopy (FTIR). Adhesive joints were prepared using the synthesized glycerol-based polymers, and poly(vinyl acetate), PVAc, for comparison purposes. Thermal analyses indicated that most of the glycerol-based polymers tested are stable up to 260 °C while adhesion tests indicated that adhesives containing CNC showed superior shear strength as compared to pristine polymers and PVAc. These results suggest that the addition of cellulose nanocrystals (CNC) is a viable approach to tailor the mechanical and adhesive properties.

可生物降解的粘合剂作为传统商业产品的替代品具有巨大的科学和技术意义，传统商业产品通常会释放有毒物质并需要很长时间才能降解。使用通过甘油和二酸缩聚合成的可生物降解聚合物的复合材料，即聚（甘油琥珀酸酯）、PGSu、聚（甘油马来酸酯）、PGM 和聚（甘油马来酸酯 - 琥珀酸酯共聚）、PGMSu，用纤维素纳米晶体 (CNC) 增强用作 Angelim ( Vatairea heteroptera Ducke ) 的粘合剂）。CNC 以 0、5、10 和 20 重量％添加到甘油衍生聚合物中，以评估它们对机械性能的影响。通过差示扫描量热法 (DSC)、热重分析 (TGA) 和傅里叶变换红外光谱 (FTIR) 分析聚合物和复合材料。为了比较目的，使用合成的甘油基聚合物和聚（醋酸乙烯酯）PVAc 制备粘合剂接头。热分析表明，大多数测试的基于甘油的聚合物在高达 260 °C 的温度下都是稳定的，而粘附力测试表明，与原始聚合物和 PVAc 相比，含有 CNC 的粘合剂显示出优异的剪切强度。这些结果表明，添加纤维素纳米晶体 (CNC) 是一种调整机械和粘合性能的可行方法。