Transition-metal-free radical homocoupling polymerization to synthesize conjugated poly(phenylene butadiynylene) polymers

• Published in: Polymer chemistry Vol. 12; no. 24; pp. 3551 - 3555
• Main Authors: Liu, Qingmin, Wang, Xuepeng, Tan, Bien, Jin, Shangbin
• Format: Journal Article
• Language: English
• Published: Cambridge Royal Society of Chemistry 28.06.2021
• Subjects: Carbon dioxide; Catalysis; Chemical synthesis; Free radical polymerization; Free radicals; Polymer chemistry; Polymerization; Polymers; Porous materials; Transition metals
• ISSN: 1759-9954; 1759-9962
• DOI: 10.1039/d1py00266j

Conjugated microporous polymers (CMPs) are porous polymers that have attracted enormous scientific and technical interest in gas adsorption and heterogeneous catalysis. However, most of these conjugated porous polymers involve transition-metal catalysis, and the transition-metal-free radical polymerization method has rarely been investigated. Here, we report the synthesis of conjugated poly(phenylene butadiynylene) polymers by an efficient transition-metal-free radical homocoupling polymerization method. The materials synthesized by this method can achieve high surface areas of up to 1477 m 2 g −1 , which are superior to those of the reported transition-metal catalysis methods. These highly porous materials showed an excellent capacity for carbon dioxide and hydrogen uptake. This work provides a new methodology to construct high-surface-area organic porous materials. A transition-metal-free radical polymerization method to synthesize conjugated poly(phenylene butadiynylene) polymers with high surface areas and high gas uptake abilities.