Abstract This report documents the facile synthesis of molecular brushes, via a grafting onto approach, with potential application as coating binders. Firstly, alternating copolymers of n-butyl vinyl ether (n-BVE) and maleic anhydride (MAh), i.e. n-BVEMAh, were synthesized via conventional radical polymerization. The anhydride reactive handle was subsequently utilised to access molecular brushes, via a grafting onto method, by imidizing the MAh repeat units with amine end-functional poly(ethylene glycol) oligomers, with 12 repeating units (PEG12-NH2). The product n-BVEMI-PEG12 brushes were viscous liquids at room temperature, hence we termed them liquid molecular brushes (LMBs). The LMBs displayed Newtonian flow behaviour at shear rates below 1000 s−1. We evaluated the applicability of this molecular brush system as coating binder, by grafting varying fractions of linoleamide (Lin) side chains, which has oxidative crosslinking ability, along with the PEG12 onto n-BVEMAh, to access n-BVEMI-PEG12/Lin. The n-BVEMI-PEG12/Lin binders underwent oxidative crosslinking at 50 °C in the presence of a drier. The challenges associated with the current binder system are highlighted.

中文翻译：

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用于涂料应用的液体分子刷粘合剂的合成与表征

摘要 本报告记录了通过接枝到方法的分子刷的简便合成，具有作为涂料粘合剂的潜在应用。首先，通过常规自由基聚合合成正丁基乙烯基醚(n-BVE)和马来酸酐(MAh)的交替共聚物，即n-BVEMAh。随后，酸酐反应性手柄被用于通过接枝到分子刷上，通过用胺端官能聚（乙二醇）低聚物对 MAh 重复单元进行酰亚胺化，具有 12 个重复单元（PEG12-NH2）。产品 n-BVEMI-PEG12 刷子在室温下是粘性液体，因此我们将它们称为液体分子刷子 (LMB)。LMB 在剪切速率低于 1000 s-1 时表现出牛顿流动行为。我们评估了这种分子刷系统作为涂料粘合剂的适用性，通过将具有氧化交联能力的不同比例的亚油酰胺 (Lin) 侧链与 PEG12 一起接枝到 n-BVEMAh 上，从而获得 n-BVEMI-PEG12/Lin。在干燥剂存在下，n-BVEMI-PEG12/Lin 粘合剂在 50 °C 下进行氧化交联。突出显示了与当前活页夹系统相关的挑战。