Study on improving the molecular weight of D-A π-conjugated copolymers by conditions screening

作者：Zhu Lijun; Huo Tian; Huang Chao; Tian Yao; Bai Yan

来源：Technical Bulletin, 2017, 55(8): 99-104.

• Comparative experiments
• Conjugated copolymers
• Conventional heating
• High molecular weight
• Molecular weight and molecular weight distributions
• Optimized reaction conditions
• Polymerization conditions
• Reaction conditions

The copolymerization of donor-acceptor π-conjugated polymers was investigated by detailed screening of the reaction conditions. Through studying the relationship of molecular weight between the reaction types, microwave heating time, temperature, monomer ratio, and catalyst amount, the optimized reaction conditions for large molecular weight and narrow distribution were found. Compared to the conventional heating, the microwave heating has obvious advantages in reaction time, the yield and molecular weight and molecular weight distribution. It is found that the ratio of monomer is the most important and hard to control condition for the polymerization of unstable or difficult-to-purify monomers. Conditional screening and comparative experiments are the best way to achieve high molecular weight polymerization conditions.

• 出版日期2017
• 单位中国石油大学（华东）