Institute of Chemistry, Kazan (Volga Region) Federal University, Kazan, Russia.
J Colloid Interface Sci. 2011 Aug 1;360(1):204-10. doi: 10.1016/j.jcis.2011.04.017. Epub 2011 Apr 17.
Specific combination of guest sorption properties was observed for phosphorus-containing dendrimers, which distinguish them from ordinary polymers and clathrate-forming hosts. The sorption capacity for 30 volatile guests, binding reversibility, guest desorption kinetics and guest exchange, glass transition behavior and ability to be plasticized with guest were studied for phosphorus dendrimers of different generations (G(1)-G(4) and G(9)) using quartz crystal microbalance sensor, FTIR microspectroscopy, atomic force microscopy, simultaneous thermogravimetry and differential scanning calorimetry combined with mass-spectrometry of evolved vapors. The dendrimers were found to have a different selectivity for different homological series of guests, high glass transition points without plasticization with guest even at high temperatures and saturation levels, moderate guest-binding irreversibility and ability both for effective guest exchange and independent guest sorption. These properties constitute an advantage of the studied dendrimers as receptor materials in various applications.
对于含磷树状大分子，观察到了客体吸附特性的特定组合，这使它们有别于普通聚合物和主体包合物。使用石英晶体微天平传感器、FTIR 微光谱、原子力显微镜、同步热重和差示扫描量热法与挥发物的质谱联用，研究了不同代（G(1)-G(4)和 G(9)）的磷树状大分子对 30 种挥发性客体的吸附容量、结合可逆性、客体解吸动力学和客体交换、玻璃化转变行为以及被客体增塑的能力。发现这些树状大分子对不同同源系列的客体具有不同的选择性，即使在高温和饱和水平下，也具有较高的玻璃化转变点，没有被客体增塑，中等的客体结合不可逆性，以及有效客体交换和独立客体吸附的能力。这些特性使研究中的树状大分子作为各种应用中的受体材料具有优势。
