We report a new and robust strategy toward the development of high-performance pressure sensitive adhesives (PSAs) from chemicals directly obtained from raw biomass deconstruction. A particularly unique and translatable aspect of this work was the use of a monomer obtained from real biomass, as opposed to a model compound or lignin-mimic, to generate well-defined and nanostructure-forming polymers. Herein, poplar wood depolymerization followed by minimal purification steps (filtration and extraction) produced two aromatic compounds, 4-propylsyringol and 4-propylguaiacol, with high purity and yield. Efficient functionalization of those aromatic compounds with either acrylate or methacrylate groups generated monomers that could be easily polymerized by a scalable reversible addition-fragmentation chain-transfer (RAFT) process to yield polymeric materials with high glass transition temperatures and robust thermal stabilities, especially relative to other potentially biobased alternatives. These lignin-derived compounds were used as a major component in low-dispersity triblock polymers composed of 4-propylsyringyl acrylate and n-butyl acrylate (also can be biobased). The resulting PSAs exhibited excellent adhesion to stainless steel without the addition of any tackifier or plasticizer. The 180° peel forces were up to 4 N cm-1, and tack forces were up to 2.5 N cm-1, competitive with commercial Fisherbrand labeling tape and Scotch Magic tape, demonstrating the practical significance of our biomass-derived materials.

中文翻译：

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从树到胶带：由解聚的原始木质纤维素生物质直接合成压敏胶。

我们报告了从直接从原始生物质解构过程中获得的化学品开发高性能压敏胶粘剂（PSA）的新的，强大的策略。这项工作的一个特别独特且可翻译的方面是使用从真实生物质中获得的单体，而不是模型化合物或木质素模拟物，来生成定义明确且形成纳米结构的聚合物。在此，杨木木材解聚，然后进行最少的纯化步骤（过滤和萃取），以高纯度和高收率产生了两种芳族化合物4-丙基丁香酚和4-丙基愈创木酚。那些具有丙烯酸酯或甲基丙烯酸酯基团的芳族化合物的有效官能化生成的单体可以通过可扩展的可逆加成-断裂链转移（RAFT）工艺轻松聚合，以生产具有高玻璃化转变温度和稳健的热稳定性的聚合物材料，尤其是相对于其他潜在的基于生物的替代品。这些木质素衍生的化合物被用作低分散性三嵌段聚合物的主要成分，该低嵌段三嵌段聚合物由丙烯酸4-丙基丁烯基酯和丙烯酸正丁酯（也可以是生物基的）组成。所得的PSA在不添加任何增粘剂或增塑剂的情况下对不锈钢具有出色的附着力。180°剥离力高达4 N cm-1，粘着力高达2.5 N cm-1，可与商业Fisherbrand标签胶带和Scotch Magic胶带竞争，