Behavior of thermosensitive graft copolymer with aromatic polyester backbone and poly-2-ethyl-2-oxazoline side chains in aqueous solutions

被引：24
作者：
Kudryavtseva, A. A. [1 ]
Kurlykin, M. P. [1 ]
Tarabukina, E. B. [1 ]
Tenkovtsev, A. V. [1 ]
Filippov, A. P. [1 ]
机构：
[1] Russian Acad Sci, Inst Macromol Cpds, Bolshoy Pr 31, St Petersburg 199004, Russia
来源：
INTERNATIONAL JOURNAL OF POLYMER ANALYSIS AND CHARACTERIZATION | 2017年 / 22卷 / 06期
关键词：
Aggregation; grafting density; light scattering and turbidimetry; phase separation; thermoresponsive graft copolymer; STIMULI-RESPONSIVE BEHAVIOR; N-ISOPROPYLACRYLAMIDE; MALEIC-ACID; POLYMERS; POLY(2-OXAZOLINE)S;
D O I：
10.1080/1023666X.2017.1342188
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Thermoresponsive graft copolymers with alkylene-aromatic polyester main chain and poly-2-ethyl-2-oxazoline side chains were synthesized. Two copolymer samples which differed in grafting density (0.5 and 0.7) were studied using dynamic and static light scattering and turbidimetry in aqueous solutions at concentration 0.0053gcm(-3). Hydrodynamic radii of scattering objects and their contribution to light scattering were obtained as a function of temperature in a wide temperature interval. Temperatures of phase separation were found out. Effect of grafting density on the copolymer behavior in aqueous solutions upon heating was determined. In particular, the phase separation temperature reduces with the decreasing grafting density.
引用
收藏
页码：526 / 533
页数：8
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