Tetrahydrofurfuryl methacrylate helps to produce biobased hydrophobic waterborne protective coatings by emulsion polymerization

IF 7.3 2区材料科学 Q1 CHEMISTRY, APPLIED Progress in Organic Coatings Pub Date : 2025-02-22 DOI:10.1016/j.porgcoat.2025.109159

Sara Rubio, Jose Ramon Leiza, Aitor Barquero, Edurne González

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Abstract

As sustainability concerns increase, the need to explore new biobased monomers arises. In this work, latexes with high biobased (61–71 %) and solids content (up to 40 %) are produced by emulsion polymerization for their application as coatings. Initially, the emulsion homopolymerization of three different soft biobased methacrylates is investigated; 2-octyl methacrylate (OMA), tetrahydrogeraniol methacrylate (TGM) and tetradecyl methacrylate (TDM). The challenges to polymerize these monomers by emulsion polymerization are addressed and the properties of the homopolymers obtained measured (T_g and molar masses). Secondly, the three different soft biobased methacrylates are copolymerized by seeded semibatch emulsion polymerization with tetrahydrofurfuryl methacrylate (THFM) which is a hard and more hydrophilic biobased monomer. It is observed that by increasing THFM content the incorporation of the hydrophobic monomers is facilitated. Among the different synthesized copolymers, OMA/THFM 87/13 wt% and TGM/THFM 41/59 wt% present good film forming properties, suitable mechanical properties and better water resistance than a petroleum-based methyl methacrylate/butyl acrylate (MMA/BA) copolymer.

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甲基丙烯酸四氢呋喃酯有助于乳液聚合制备生物基疏水水性防护涂料

随着可持续性问题的增加，探索新的生物基单体的需求出现了。在这项工作中，乳液聚合生产出高生物基（61 - 71%）和固体含量（高达40%）的乳液，用于涂料。首先，研究了三种软基甲基丙烯酸酯的乳液均聚；甲基丙烯酸二辛酯（OMA）、甲基丙烯酸四氢香叶醇（TGM）和甲基丙烯酸十四烷基（TDM）。讨论了用乳液聚合聚合这些单体所面临的挑战，并测量了所得均聚物的性质（Tg和摩尔质量）。其次，采用种子半间歇乳液聚合的方法，将三种软质甲基丙烯酸酯与较硬的亲水生物基单体甲基丙烯酸四氢呋喃酯（THFM）共聚。观察到，增加THFM含量有利于疏水单体的掺入。在不同合成的共聚物中，OMA/THFM 87/13 wt%和TGM/THFM 41/59 wt%比石油基甲基丙烯酸甲酯/丙烯酸丁酯（MMA/BA）共聚物具有良好的成膜性能、合适的机械性能和更好的耐水性。

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来源期刊

Progress in Organic Coatings 工程技术-材料科学：膜

CiteScore

11.40

自引率

15.20%

发文量

577

审稿时长

48 days

期刊介绍： The aim of this international journal is to analyse and publicise the progress and current state of knowledge in the field of organic coatings and related materials. The Editors and the Editorial Board members will solicit both review and research papers from academic and industrial scientists who are actively engaged in research and development or, in the case of review papers, have extensive experience in the subject to be reviewed. Unsolicited manuscripts will be accepted if they meet the journal''s requirements. The journal publishes papers dealing with such subjects as: • Chemical, physical and technological properties of organic coatings and related materials • Problems and methods of preparation, manufacture and application of these materials • Performance, testing and analysis.