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Consequences of End-Group Fidelity for the Quantitative Analysis of Surface Grafting of Polymers
ACS Macro Letters ( IF 5.1 ) Pub Date : 2020-03-02 , DOI: 10.1021/acsmacrolett.0c00136
Christian Rossner 1
Affiliation  

End-functional polymers are employed in a wide range of functionalization reactions, including, among others, polymer surface grafting. Herein, kinetic (PREDICI) simulations are used to investigate to what extent the molar mass distribution (MMD) of α-end-functional polymers derived from RAFT polymerization may differ from the MMD of nonfunctional chains and the overall polymeric material. The results indicate that the MMD of the overall polymeric material (as commonly accessed in experiments) may not provide a good estimate for the MMD of α-end-functional chains, if polymerization conditions deviate strongly from pseudoliving conditions. Careful consideration of this behavior is required when using α-end-functional RAFT polymers in quantitative studies.

中文翻译:

端基保真度对聚合物表面接枝定量分析的影响

末端官能聚合物用于广泛的官能化反应,其中包括聚合物表面接枝。在此,动力学 (PREDICI) 模拟用于研究源自 RAFT 聚合的 α-末端官能聚合物的摩尔质量分布 (MMD) 与非官能链的 MMD 和整体聚合物材料的不同程度。结果表明,如果聚合条件严重偏离假活性条件,则整体聚合物材料的 MMD(如实验中通常访问的那样)可能无法很好地估计 α-末端功能链的 MMD。在定量研究中使用 α-末端功能 RAFT 聚合物时,需要仔细考虑这种行为。
更新日期:2020-03-03
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