Controlling π-Conjugated Polymer–Acceptor Interactions by Designing Polymers with a Mixture of π-Face Strapped and Nonstrapped Monomers
Controlling π-Conjugated Polymer–Acceptor Interactions by Designing Polymers with a Mixture of π-Face Strapped and Nonstrapped Monomers
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通过设计具有α-面带和非带单体混合物的聚合物来控制α-共轭聚合物与受体相互作用
DOI：
10.1021/acs.macromol.3c00175
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发表时间：
2023
期刊：
影响因子：
5.5
通讯作者：
Gavvalapalli, Nagarjuna
中科院分区：
文献类型：
--
作者：
Hameed, Fatima;Mohanan, Manikandan;Ibrahim, Nafisa;Ochonma, Charles;Rodríguez-López, Joaquín;Gavvalapalli, Nagarjuna
控制π共轭聚合物-受体配合物的相互作用，包括相互作用强度和沿聚合物主链的位置，是有机电子和能源应用的核心。与传统的悬垂型增溶链相比，捆扎型π共轭聚合物的带状物掩盖了聚合物主链的π面，有助于控制聚合物主链的π面与其他聚合物链和小分子的相互作用。本文中，我们合成了一系列带带和非带带共聚物的带带π共轭共聚物，以控制聚合物与受体的相互作用。模拟证实了受体被定向到非束缚的重复单元。更重要的是，与带链均聚物和具有悬垂增溶链的传统聚合物相比，带链均聚物克服了均聚物的一个主要缺点，显示出更高的光致光致发光（PL）猝灭，这是一种从聚合物到受体的电子转移的测量。我们还表明，这种策略不仅适用于束缚聚合物，也适用于具有悬垂增溶链的传统聚合物。PL猝灭的增加是由于共聚单体周围没有空间鞘以及它们沿聚合物主链的随机位置，这增加了沿聚合物主链发生非邻近受体结合事件的概率。因此，与均聚物相比，通过沿聚合物主链混合绝缘单体和非绝缘单体，受体沿聚合物主链的位置、聚合物-受体相互作用强度和光致电荷转移效率都是可控的。
Controlling π-conjugated polymer–acceptor complex interaction, including the interaction strength and location along the polymer backbone, is central to organic electronics and energy applications. Straps in the strapped π-conjugated polymers mask the π-face of the polymer backbone and hence are useful to control the interactions of the π-face of the polymer backbone with other polymer chains and small molecules compared to the conventional pendant solubilizing chains. Herein, we have synthesized a series of strapped π-conjugated copolymers containing a mixture of strapped and nonstrapped comonomers to control the polymer–acceptor interactions. Simulations confirmed that the acceptor is directed toward the nonstrapped repeat unit. More importantly, strapped copolymers overcome a major drawback of homopolymers and display higher photoinduced photoluminescence (PL) quenching, which is a measure of electron transfer from the polymer to acceptor, compared to that of both the strapped homopolymer and the conventional polymer with pendant solubilizing chains. We have also shown that this strategy applies not only to strapped polymers, but also to the conventional polymers with pendant solubilizing chains. The increase in PL quenching is attributed to the absence of a steric sheath around the comonomers and their random location along the polymer backbone, which enhances the probability of non-neighbor acceptor binding events along the polymer backbone. Thus, by mixing insulated and noninsulated monomers along the polymer backbone, the location of the acceptor along the polymer backbone, polymer–acceptor interaction strength, and the efficiency of photoinduced charge transfer are controllable compared to the homopolymers.
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影响因子：
5.5
作者：
Tengzhou Ma;B. Dong;Garrett L. Grocke;J. Strzalka;Shrayesh N. Patel
通讯作者：
Tengzhou Ma;B. Dong;Garrett L. Grocke;J. Strzalka;Shrayesh N. Patel
影响因子：
15
作者：
Leventis, Anastasia;Royakkers, Jeroen;Bronstein, Hugo
通讯作者：
Bronstein, Hugo
异吲哚吲哚基共轭聚合物对鲁棒可转变有机导体的掺杂特性
DOI：
--
发表时间：
2019
期刊：
影响因子：
--
作者：
Jaehong Park;Sang;Yeongkwon Kang;Inkyung Lee;Jong H. Kim;Bong‐Gi Kim
通讯作者：
Bong‐Gi Kim
DOI：
10.1016/j.jphotochem.2012.08.015
发表时间：
2012-12-01
影响因子：
4.3
作者：
Campbell, Katie;Zappas, Andrew;Bucknall, David G.
通讯作者：
Bucknall, David G.
影响因子：
5.5
作者：
Lillis, Ryan;Thomas, Maximillian R.;Gavvalapalli, Nagarjuna
通讯作者：
Gavvalapalli, Nagarjuna