Department of Organic Chemistry, Institute of Chemistry and Chemical Technologies, Lviv Polytechnic National University, 79000 Lviv, Ukraine.
Department of Coatings and Polymeric Materials, North Dakota State University, Fargo, ND 58108-6050, USA.
Molecules. 2020 Jun 30;25(13):2990. doi: 10.3390/molecules25132990.
In recent years, polymer chemistry has experienced an intensive development of a new field regarding the synthesis of aliphatic and aromatic biobased monomers obtained from renewable plant sources. A one-step process for the synthesis of new vinyl monomers by the reaction of direct transesterification of plant oil triglycerides with -(hydroxyethyl)acrylamide has been recently invented to yield plant oil-based monomers (POBMs). The features of the POBM chemical structure, containing both a polar (hydrophilic) fragment capable of electrostatic interactions, and hydrophobic acyl fatty acid moieties (C-C) capable of van der Waals interactions, ensures the participation of the POBMs fragments of polymers in intermolecular interactions before and during polymerization. The use of the POBMs with different unsaturations in copolymerization reactions with conventional vinyl monomers allows for obtaining copolymers with enhanced hydrophobicity, provides a mechanism of internal plasticization and control of crosslinking degree. Synthesized latexes and latex polymers are promising candidates for the formation of hydrophobic polymer coatings with controlled physical and mechanical properties through the targeted control of the content of different POBM units with different degrees of unsaturation in the latex polymers.
近年来，聚合物化学在合成源自可再生植物资源的脂肪族和芳香族生物基单体方面经历了一个新领域的密集发展。最近发明了一种通过植物油三酸甘油酯与-(羟乙基)丙烯酰胺的直接酯交换反应合成新型乙烯基单体的一步法，以得到植物油基单体（POBM）。POBM 化学结构的特点是同时含有一个极性（亲水）片段，能够进行静电相互作用，和疏水性酰基脂肪酸部分（C-C），能够进行范德华相互作用，确保了聚合物的 POBM 片段在聚合前后参与分子间相互作用。使用具有不同不饱和度的 POBM 进行与传统乙烯基单体的共聚反应，可以获得疏水性增强的共聚物，提供了内部增塑和交联度控制的机制。合成的乳液和乳液聚合物是通过靶向控制不同不饱和度的不同 POBM 单元在乳液聚合物中的含量，形成具有可控物理和机械性能的疏水性聚合物涂层的有前途的候选物。
