高等学校化学学报2011，Vol.32Issue(11)：2667-2673,7.
两亲嵌段树枝状分子Gx-PBE-b-Gx-PMPA( OH)x2的合成及多重氢键作用
Synthesis of Amphiphilic Block Codendrimers Gx-PBE-b-Gx-PMPA ( OH ) x2 and Study on Temperature Dependence of Multiple Hydrogen Bonds
摘要
Abstract
Block codendrimers Gx-PBE-b-Gx-PMPA were synthesized through a coupling reaction between Gx-PBE dendrons and Gx.-PMPA dendrons(x = 1, 2, 3). Amphiphlic block codendrimers Gx-PBE-b-Gx-PMPA (OH) x2 were further prepared through removing acetonide protecting groups on the periphery of the G^-PMPA blocks. Their chemical structures were characterized by 'H NMR and 13C NMR spectroscopies, MALDI-TOF(or FD) mass spectroscopy and FTIR spectroscopy. Meanwhile, FTTR spectrometer equipped with a heating stage was used to study the change of the hydrogen bonds in-between hydroxyl groups with increasing temperature. A widened transition region with increasing dendron generation was found. This result can indicate that with increasing dendron generation the ability of forming intermolecular hydrogen bonds decrease due to the three-dimensional structure of higher generation dendron.关键词
两亲分子/树枝状分子/氢键Key words
Amphiphile/ Dendrimer/ Hydrongen bond分类
化学化工引用本文复制引用
袁飞,李秋月,王维..两亲嵌段树枝状分子Gx-PBE-b-Gx-PMPA( OH)x2的合成及多重氢键作用[J].高等学校化学学报,2011,32(11):2667-2673,7.基金项目
国家自然科学基金(批准号:20734001)资助 （批准号:20734001）
