Ruiz-Bermejo Marta, García-Armada Pilar, Valles Pilar, de la Fuente José L
Departamento de Evolución Molecular, Centro de Astrobiología (INTA-CSIC), Ctra. Torrejón-Ajalvir, km 4, Torrejón de Ardoz, 28850 Madrid, Spain.
Department of Industrial Chemical Engineering, Escuela Técnica Superior de Ingenieros Industriales, Universidad Politécnica de Madrid, José Gutiérrez Abascal, 2, 28006 Madrid, Spain.
Polymers (Basel). 2022 Aug 24;14(17):3460. doi: 10.3390/polym14173460.
The polymers based on diaminomaleonitrile (DAMN polymers) are a special group within an extensive set of complex substances, namely HCN polymers (DAMN is the formal tetramer of the HCN), which currently present a growing interest in materials science. Recently, the thermal polymerizability of DAMN has been reported, both in an aqueous medium and in bulk, offering the potential for the development of capacitors and biosensors, respectively. In the present work, the polymerization of this plausible prebiotic molecule has been hydrothermally explored using microwave radiation (MWR) via the heating of aqueous DAMN suspensions at 170-190 °C. In this way, polymeric submicron particles derived from DAMN were obtained for the first time. The structural, thermal decomposition, and electrochemical properties were also deeply evaluated. The redox behavior was characterized from DMSO solutions of these highly conjugated macromolecular systems and their potential as semiconductors was described. As a result, new semiconducting polymeric submicron particles were synthetized using a very fast, easy, highly robust, and green-solvent process. These results show a new example of the great potential of the polymerization assisted by MWR associated with the HCN-derived polymers, which has a dual interest both in chemical evolution and as functional materials.
基于二氨基马来腈的聚合物（DAMN聚合物）是一大类复杂物质中的特殊一类，即HCN聚合物（DAMN是HCN的正式四聚体），目前在材料科学领域越来越受关注。最近，已有报道称DAMN在水介质和本体中均具有热聚合性，分别为电容器和生物传感器的开发提供了潜力。在本工作中，通过在170 - 190°C下加热DAMN水悬浮液，利用微波辐射（MWR）对这种可能的前体生物分子进行了水热聚合探索。通过这种方式，首次获得了源自DAMN的聚合物亚微米颗粒。还对其结构、热分解和电化学性质进行了深入评估。从这些高度共轭大分子体系的二甲基亚砜溶液中表征了氧化还原行为，并描述了它们作为半导体的潜力。结果，使用一种非常快速、简便、高度稳健且使用绿色溶剂的方法合成了新型半导体聚合物亚微米颗粒。这些结果展示了MWR辅助聚合与HCN衍生聚合物相关的巨大潜力的一个新例子，这在化学进化和作为功能材料方面都具有双重意义。
