Micron School of Materials Science and Engineering, Boise State University, 1910 W University Dr., Boise, ID 83725, USA.
Sci Adv. 2023 Mar 22;9(12):eadg2295. doi: 10.1126/sciadv.adg2295.
Ethyl cyanoacrylate is a highly reactive monomer that has been used nearly exclusively to make Super Glue and related fast-setting adhesives. Here, we describe transformation of this highly abundant, readily available monomer into a closed-loop recyclable plastic that could supplant currently used (and often unrecycled/unrecyclable) plastics, such as poly(styrene). We report polymerization conditions, plastic-processing methods, and plastic-recycling protocols for poly(ethyl cyanoacrylate) plastics that make the Super Glue monomer a viable starting material for a next generation of closed-loop recyclable plastics. The processes described are scalable, and the plastics can be recycled in a closed-loop process with >90% yields, even when combined with a heterogeneous mixture of other types of plastic.
氰基丙烯酸乙酯是一种高反应性单体，几乎专门用于制造超级胶水和相关的快干胶粘剂。在这里，我们描述了将这种丰富、易得的单体转化为闭环可回收塑料的过程，这种塑料可以替代目前使用的（通常不可回收/不可回收）塑料，如聚苯乙烯。我们报告了聚合条件、塑料加工方法和聚（氰基丙烯酸乙酯）塑料的回收方案，使超级胶水单体成为下一代闭环可回收塑料的可行起始材料。所描述的过程具有可扩展性，即使与其他类型的塑料的不均匀混合物结合使用，塑料也可以以 90%以上的产率在闭环回收过程中进行回收。
