2134/35175 Qingqing Gao Qingqing Gao Zijie Qiu Zijie Qiu Mark Elsegood Mark Elsegood Ming Chen Ming Chen Jianguo Wang Jianguo Wang Ryan T. Kwok Ryan T. Kwok Jacky W.Y. Lam Jacky W.Y. Lam Ben Zhong Tang Ben Zhong Tang Regio- and stereoselective polymerization of diynes with inorganic comonomer: a facile strategy to conjugated poly(p-arylene dihalodiene)s with processability and postfunctionalizability Loughborough University 2018 untagged Chemical Sciences not elsewhere classified 2018-10-05 09:14:01 Journal contribution https://repository.lboro.ac.uk/articles/journal_contribution/Regio-_and_stereoselective_polymerization_of_diynes_with_inorganic_comonomer_a_facile_strategy_to_conjugated_poly_p-arylene_dihalodiene_s_with_processability_and_postfunctionalizability/9390302 Copyright © 2018 American Chemical Society. Development of new methodologies for synthesizing polymers with novel structures and unique properties is a fundamentally important area in polymer science. Herein, a novel synthetic strategy to conjugated poly(p-arylene dihalodiene)s (PADs) with high regio- and stereoselectivity was developed. In the presence of PdBr 2 and CuBr 2 , the polymerizations of terminal alkynes proceeded smoothly in air without heating to generate PADs in high yields (up to 95.3%) with high molecular weights (M w up to 915 900). Low-cost inorganic CuBr 2 played dual roles as cocatalyst and comonomer. The PADs possessed good solubility and film-formi ng ability. Their thin films exhibited high refractive indices (1.7149-1.7245) and would be fabricated into well-resolved fluorescent photopatterns by photolithography. Thanks to the vinyl bromine functionality, the PADs could undergo efficient postmodification to afford polymers with more sophisticated structures and applications. ©