Deuterium Isotope Effect on Solution Behavior of Thermoresponsive Star-Shaped Poly(2-isopropyl-2-oxazoline)

被引：11
作者：
Filippov, Alexander P. [1 ]
Amirova, Alina I. [1 ]
Nikolaeva, Marianna N. [1 ]
Dudkina, Marina M. [1 ]
Tenkovtsev, Andrey V. [1 ]
机构：
[1] Russian Acad Sci, Inst Macromol Cpds, St Petersburg 199004, Russia
来源：
INTERNATIONAL JOURNAL OF POLYMER ANALYSIS AND CHARACTERIZATION | 2014年 / 19卷 / 08期
基金：
俄罗斯科学基金会;
关键词：
Star polymers; Polyoxazoline; Deuterium isotope effect; Thermoresponsiveness; Light scattering; AQUEOUS POLYMER-SOLUTIONS; INDUCED PHASE-TRANSITION; FTIR SPECTROSCOPY; HYDRATION STATES; LIGHT-SCATTERING; WATER; TEMPERATURE; POLY(N-ISOPROPYLACRYLAMIDE); FLUORESCENCE; CHAIN;
D O I：
10.1080/1023666X.2014.954326
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Thermosensitive star-shaped poly(2-isopropyl-2-oxazoline) (molar mass M approximate to 21000gmol(-1)) in D2O solution was studied by the static and dynamic light scattering methods. The behavior of the polymer investigated in deuterated water is similar qualitatively to that observed previously in undeuterated water. At the same time, the considerable quantitative changes of polymer behavior in D2O were seen. Deuterium substitution of solvent affects the phase transition temperature by decreasing its value by 1 degrees C. The temperature interval of phase transition in D2O solution expands (by about 1 degrees C) in comparison with that in H2O solution.
引用
收藏
页码：721 / 730
页数：10
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