Bandiera Massimo, Balk Roelof, Barandiaran Maria J
POLYMAT and Departamento de Química Aplicada, Facultad de Ciencias Químicas, University of the Basque Country UPV/EHU, 20018 Donostia-San Sebastián, Spain.
BASF SE, 67056 Ludwigshafen am Rhein, Germany.
Polymers (Basel). 2018 Jan 18;10(1):88. doi: 10.3390/polym10010088.
Alkali-soluble resins (ASRs) are a type of electrosteric emulsifiers of high interest because they can profitably improve the features of waterborne dispersions. In this work, they have been synthesized in-situ through a one-pot approach and they have been used as polymeric surfactants for a second emulsion polymerization step in the same reactor. This strategy provides some advantages compared to other polymerization techniques, like the intensification of the process and the absence of organic solvents. Their use can also further reduce the environmental impact of formulations for film-forming applications, since grafting reactions with the particles have been observed and quantified in relation with the synthetic parameters. These chemical linkages with the particles may reduce the leaching and the release of surfactants from polymeric films, for example in water-based coatings or adhesives. The systems have been also studied from the kinetics point of view, finding relevant differences with other electrosterically stabilized processes from the literature, as well as concerns the nucleation mechanism.
碱溶性树脂（ASR）是一类备受关注的电空间稳定型乳化剂，因为它们能够有效地改善水性分散体的性能。在本工作中，它们通过一锅法原位合成，并在同一反应器中用作第二乳液聚合步骤的聚合物表面活性剂。与其他聚合技术相比，该策略具有一些优势，例如工艺强化和无需有机溶剂。它们的使用还可以进一步降低成膜应用配方对环境的影响，因为已观察到并根据合成参数对与颗粒的接枝反应进行了量化。这些与颗粒的化学连接可能会减少聚合物薄膜中表面活性剂的浸出和释放，例如在水性涂料或粘合剂中。还从动力学角度对这些体系进行了研究，发现与文献中其他电空间稳定过程存在显著差异，以及成核机制方面的问题。
