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Selective Depolymerization for Sculpting Polymethacrylate Molecular Weight Distributions

delete2025-01-29
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PRE
AI
A
A. Tamura
K
Kevin A. Stewart
J
James B. Young
W
Wei, Nathan B.
A
Alexander J. Cantor
DOI:10.1021/jacs.4c15553delete
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摘要

摘要

En 中文
由可逆终止自由基聚合(RDRP)生成的聚甲基丙烯酸酯的链端再活化,已作为一种在远低于传统所采用温度下触发解聚的强大工具而出现。在本研究中,我们展示了聚(甲基丙烯酸丁酯)(PBMA)的简便解聚如何被用来选择性地改变分子量分布(MWD)并可预测地改变混合PBMA体系的粘弹性性质。通过将具有热活性链端的聚合物与具有不同分子量及惰性链端的聚合物混合,混合物的MWD可通过选择性解聚而被调整至高分子量或低分子量。该方法导致了一种反直觉的原则:材料的破坏性增强。最后,我们以概念验证的方式演示了通过将莫尔斯电码与选择性解聚前后的MWD关联起来,在聚合物混合物中加密信息,从而实现在合成大分子共混物中编码数据。
Keyword:
RAFT POLYMERIZATION
POLYMERS
NANOPARTICLES
AGENTS

期刊

Journal of the American Chemical Society 封面图
Journal of the American Chemical Society
IF:
15.6
论文数:
20.0W
被引数:
60.2W

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暂无机构信息
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