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Your search keyword '"Qingqing Gao"' showing total 3 results
Start Over Author "Qingqing Gao" Journal macromolecules
3 results on '"Qingqing Gao"'

1. Facile Synthesis of Functional Processable Fluoropolydienes by Alkyne-Based Multicomponent Polycouplings

Author

Xinnan Wang, Ting Han, Ben Zhong Tang, Jacky Wing Yip Lam, Shunjie Liu, Peifa Wei, Zijie Qiu, Xiaolin Liu, and Qingqing Gao

Subjects
Inorganic Chemistry, chemistry.chemical_classification, Materials science, Polymers and Plastics, Polymerization, chemistry, Organic Chemistry, Materials Chemistry, Alkyne, Combinatorial chemistry
Abstract

A facile alkyne-based multicomponent polymerization route was developed for the construction of solution-processable fluoropolymers with multiple functionalities. The palladium-catalyzed one-pot po...

Published
2020

2. Regio- and Stereoselective Polymerization of Diynes with Inorganic Comonomer: A Facile Strategy to Conjugated Poly(p-arylene dihalodiene)s with Processability and Postfunctionalizability

Author

Mark R. J. Elsegood, Jianguo Wang, Ming Chen, Ben Zhong Tang, Qingqing Gao, Jacky Wing Yip Lam, Ryan T. K. Kwok, and Zijie Qiu

Subjects
chemistry.chemical_classification, Materials science, Polymers and Plastics, Comonomer, Organic Chemistry, Arylene, 02 engineering and technology, Polymer, Conjugated system, 010402 general chemistry, 021001 nanoscience & nanotechnology, 01 natural sciences, 0104 chemical sciences, Inorganic Chemistry, chemistry.chemical_compound, chemistry, Polymerization, Polymer chemistry, Materials Chemistry, Stereoselectivity, Solubility, Thin film, 0210 nano-technology
Abstract

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 PdBr2 and CuBr2, 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 (Mw up to 915 900). Low-cost inorganic CuBr2 played dual roles as cocatalyst and comonomer. The PADs possessed good solubility and film-forming 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.

Published
2018

3. Regio- and Stereoselective Polymerization of Diynes with Inorganic Comonomer: A Facile Strategy to Conjugated Poly(p-arylene dihalodiene)s with Processability and Postfunctionalizability.

Author

Qingqing Gao, Zijie Qiu, Elsegood, Mark R. J., Ming Chen, Jianguo Wang, Kwok, Ryan T. K., Lam, Jacky W. Y., and Ben Zhong Tang

Subjects
*STEREOSELECTIVE reactions, *POLYMERIZATION, *CONJUGATED polymers, *HEATING, *SOLUBILITY
Abstract

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 PdBr2 and CuBr2, 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 (Mw up to 915 900). Low-cost inorganic CuBr2 played dual roles as cocatalyst and comonomer. The PADs possessed good solubility and film-forming 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. [ABSTRACT FROM AUTHOR]

Published
2018
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