Journal
MACROMOLECULES
Volume 50, Issue 15, Pages 5719-5728Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.macromol.7b00992
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Funding
- National Science Foundation of China [21525417, 21490571]
- Ministry of Science and Technology of China [2013CB834702]
- Natural Science Foundation of Guangdong Province [2016A030312002]
- National Program for Support of Top-Notch Young Professionals
- Fundamental Research Funds for the Central Universities [2015ZY013]
- Innovation and Technology Commission [ITC-CNERC14S01]
- Guangdong Innovative Research Team Program [201101C0105067115]
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Polyhydroamination of alkynes is an important methodology for preparing nitrogen-containing polymers. At present, all of the. reported polyhydroamination alkynes proceed through nucleophilic addition, and no straightforward electrophilic polyhydroamination has been reported. In this paper, a novel copper-catalyzed electrophilic polyhydroamination of alkynes was developed, and soluble and thermally stable poly(enamine)s with high weight-average molecular: weights (M(w)s up to 12 650) were produced in excellent yields (up to 95%) under mild reaction conditions. Moreover, the regioselectivity of this electrophilic polyhydroamination could be tuned by adjusting one of the substitutions of internal diynes from phenyl to alkyl group. By introducing the tetraphenylethene moiety into polymer backbones, the resultant polymers exhibit unique aggregation induced emission feature, and their aggregates could be used to sensitively detect explosives. This efficient polymerization will open up enormous opportunities for preparing functional nitrogen-containing acetylenic polymers applicable in diverse areas.
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