期刊
ACS MACRO LETTERS
卷 7, 期 7, 页码 778-782出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsmacrolett.8b00443
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资金
- National Natural Science Foundation of China [21504032]
- Fundamental Research Funds for the Central Universities [JUSRP115A07]
- International Joint Research Center for Photoresponsive Molecules and Materials
- Postgraduate Research and Practice Innovation Program of Jiangsu Province [jszz-0210]
Hyperbranched polymers are an important class of soft nanomaterial, but the synthesis of hyperbranched polymers with well-defined dendritic structure from readily available monomers remains a challenge in polymer chemistry. We herein report a sequential polycondensation method for the one-pot synthesis of hyperbranched polymers with tunable structure and high degree of branching from commercial available monomers. Specifically, in the polycondensation process of equimolar difunctional haloalkane (A(2)-type monomers) and trifunctional dihydroxybenzoic acid (CB2-type monomers) using K2CO3 as the base, the aliphatic nucleophilic substitution reactivity sequence of the functional groups derived from CB2 monomers is C > second B > first B >> original B, thereby producing hyperbranched poly(ester ether)s with high degree of branching (DB > 0.6). Moreover, the surface functionality of the hyperbranched poly(ester ether)s could be facilely tailored by just introducing A-type monofunctional reagents into the one-pot A(2) + CB2 polymerization system.
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