Solvent-free manufacture of methacrylate polymers from biomass pyrolysis products

Solvent-free manufacture of methacrylate polymers from biomass pyrolysis products
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利用生物质热解产物无溶剂制造甲基丙烯酸酯聚合物

DOI:
10.1039/d0re00419g
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发表时间:
2021
影响因子:
3.9
通讯作者:
Ryan J
Ryan J
中科院分区:
化学2区
文献类型:
--
作者:
Ryan J

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这项工作展示了一种新的方法,通过利用混合物中存在的各种醇官能团来增加热解液体的价值,从而产生非能源产品,而无需大量分离。结果表明,79.2%的醇官能团可以通过酯化反应转化,随后聚合(85.7%),产生一系列峰值分子量(Mp)在22.9-36.9 kDa之间的聚合物产品。将最有前途的热解材料的热流变特性与类似分子量的传统聚甲基丙烯酸丁酯(pBMA)进行了比较,由于其热流变行为的相似性,显示出作为潜在替代品的可行性。新型聚合物的低分子量蜡组分已被确定为可能的增塑剂,导致粘度有所降低。该单体的生产在一个反应步骤中完成,不需要分离或使用有毒试剂。强调了整体质量平衡及其与生物精炼过程的相关性,并讨论了调整过程以改变玻璃化转变温度(Tg)和Mp的策略。
This work demonstrates a novel approach to add value to pyrolysis liquids by exploiting the diverse range of alcohol functional groups present within the mixture to yield a non-energy product, without requiring extensive separation. It is shown that 79.2% of the alcohol functional groups can be converted by esterification and subsequently polymerised (85.7%) to produce a range of polymer products with peak molecular weight (Mp) ranging from 22.9–36.9 kDa. Thermal and rheological properties of the most promising pyrolysis material have been compared with conventional poly(butyl methacrylate) (pBMA) of similar molecular weight, showing viability as a potential replacement owing to similarities in its thermorheological behaviour. A low molecular weight wax component of the novel polymer has been identified as a possible plasticizing agent, causing some decreases in viscosity. Production of the monomer is achieved in one reaction step and without separation or the use of toxic reagents. The overall mass balance and relevance to a biorefinery process is highlighted and strategies to tune the process to vary glass transition temperature (Tg) and Mp are discussed.
DOI: 10.1016/j.fuel.2008.01.012
发表时间: 2008-08-01
期刊: FUEL
影响因子: 7.4
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DOI: --
发表时间: 2016
期刊:
影响因子: --
作者:
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DOI: 10.1007/s00397-007-0250-3
发表时间: 2008-09-01
期刊: RHEOLOGICA ACTA
影响因子: 2.3
作者:
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通讯作者: Mohammed, Musarrat H.