期刊
MACROMOLECULAR RAPID COMMUNICATIONS
卷 29, 期 21, 页码 1746-1751出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/marc.200800450
关键词
1-adamantylamine; hyperbranched; LCST; polyamidoamines; stimuli-sensitive polymers
资金
- National Natural Science Foundation of China [50503012, 50633010, 20774057]
- Special Funds for Major State Basic Research Projects [2005CB623803]
- National Basic Research Program [2007CB808000]
- Rising-Star Foundation [06QA14028]
- Basic Research Foundation of Shanghai Science and Technique Committee [07DJ14004]
- Shanghai Leading Academic Discipline Project [B202]
A novel terminal modification agent to endow hyperbranched polyamidoamine (HPAMAM) with thermo-/pH-responsive properties is reported. HPAMAM with terminal vinyl groups is first synthesized and then end-capped by 1-adamantylamine (ADA). The resulting hyperbranched polymer (HPAMAM-ADA) shows interesting thermo-responsive properties in aqueous solution, which have been investigated by UV-vis spectroscopy, optical microscopy, and H-1 NMR spectroscopy. The lower critical solution temperature can be controlled by adjusting the end-capping ratio of ADA. In addition, HPAMAM-ADA exhibits a pH-dependent water solubility. This pH-responsive behavior is also studied.
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