Effective utilization of NIR wavelengths for photo-controlled polymerization - penetration through thick barriers and parallel solar syntheses.
Effective utilization of NIR wavelengths for photo-controlled polymerization - penetration through thick barriers and parallel solar syntheses.
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DOI：
10.1002/anie.201912484
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发表时间：
2019-12
影响因子：
--
通讯作者：
Zilong Wu;Kenward Jung;C. Boyer
中科院分区：
文献类型：
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作者：
Zilong Wu;Kenward Jung;C. Boyer
该贡献详细描述了在铝酞菁和铝萘酞菁存在下，由远红光（λ = 680 nm）和NIR（λ = 780和850 nm）调节的有效和受控的光聚合。引发自由基是由过氧化物的光敏化产生的，提供了一种有效的策略，该策略提供了具有优异活性特征的各种单体的受控聚合。重要的是，长波长辐射提供了穿透厚屏障的能力，提供了前所未有的可控聚合速率，可以打开新的和令人兴奋的应用。此外，提出了一种更优化的方法来执行太阳能合成。通过将这些PC的窄Q带与具有互补吸收的其他PC相结合，可以在单个宽带发射源（例如太阳光）下并行地进行分层的独立聚合和有机转化。
This contribution details an efficient and controlled photopolymerization regulated by far-red (λ = 680 nm) and NIR (λ = 780 and 850 nm) light in the presence of aluminum phthalocyanine and aluminum naphthalocyanine. Initiating radicals are generated by photosensitization of peroxides affording an effective strategy that provides controlled polymerizations of a variety of monomers with excellent living characteristics. Critically, the long wavelength irradiation provides penetration through thick barriers, affording unprecedented rates of controlled polymerization that can open new and exciting applications. Furthermore, a more optimized approach to performing solar syntheses is presented. By combining the narrow Q-bands of these PCs with others possessing complementary absorptions, layered, independent polymerizations and organic transformations may be performed in parallel under a single broadband emission source such as sunlight.