Behavior of aqueous solutions of polymer star with block copolymer poly(2-ethyl-2-oxazoline) and poly(2-isopropyl-2-oxazoline) arms

被引：14
|
作者：
Smirnova, A. V. [1 ]
Kirila, T. U. [1 ]
Kurlykin, M. P. [1 ]
Tenkovtsev, A. V. [1 ]
Filippov, A. P. [1 ]
机构：
[1] Inst 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 / 08期
关键词：
Light scattering and turbidimetry; phase separation temperature; poly-2-oxazoline; star polymers; thermosensitivity; CRITICAL SOLUTION TEMPERATURE; SHAPED POLYMERS; GRAFT COPOLYMER; SIDE-CHAINS; 2-ALKYL-2-OXAZOLINE; POLY(2-OXAZOLINE)S; THERMOSENSITIVITY; MICELLES; BACKBONE; WATER;
D O I：
10.1080/1023666X.2017.1366196
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Eight-arm star-shaped poly(2-alkyl-2-oxazoline) (M approximate to 21,000gmol(-1)) was studied by turbidimetry and light scattering in aqueous solutions within concentration ranging from 0.00038 to 0.0276gcm(-3). The arms were the block copolymers of poly(2-isopropyl-2-oxazoline) (PiPrOx) and poly(2-ethyl-2-oxazoline) (PEtOx). Calix[8]arene core was connected with poly(2-isopropyl-2-oxazoline). The behavior of investigated polymer differed from that of thermosensitive stars with poly(2-alkyl-2-oxazoline) homopolymer arms. At low temperatures, the aggregates were formed due to interaction of hydrophobic cores. The phase separation temperatures T-1 and T-2 of studied star were higher than those for star-shaped poly(2-isopropyl-2-oxazoline) and lower than for poly(2-ethyl-2-oxazoline). T-1 and T-2 increased with dilution.
引用
收藏
页码：677 / 684
页数：8
相关论文
共 50 条
  • [31] Enzyme/temperature responsive poly(2-isopropyl-2-oxazoline)
    Caponi, Pier-Francesco
    Ulijn, Rein V.
    ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 2011, 242
  • [32] Organization of poly(2-ethyl-2-oxazoline)-block-poly(2-phenyl-2-oxazoline) copolymers in water solution
    Trzebicka, Barbara
    Koseva, Nell
    Mitova, Violeta
    Dworak, Andrzej
    POLYMER, 2010, 51 (12) : 2486 - 2493
  • [33] MISCIBILITY AND SOLUBILITY OF POLY(2-ETHYL-2-OXAZOLINE)
    LIN, PY
    KWEI, TK
    PEARCE, EM
    CLASH, K
    ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 1986, 192 : 106 - POLY
  • [34] STYRENE MALEIMIDE COPOLYMER POLY(2-ETHYL-2-OXAZOLINE) MISCIBLE BLENDS
    DEAN, BD
    JOURNAL OF APPLIED POLYMER SCIENCE, 1987, 34 (02) : 887 - 890
  • [35] Synthesis and characterization of graft copolymer of EAA with poly(2-ethyl-2-oxazoline)
    Chen, RZ
    Zhang, Y
    Zhang, Y
    Pan, EL
    Ou, YC
    Yu, ZZ
    ACTA POLYMERICA SINICA, 2000, (02) : 200 - 204
  • [36] Phase-transition characteristics of amphiphilic poly(2-ethyl-2-oxazoline)/poly(ε-caprolactone) block copolymers in aqueous solutions
    Kim, C
    Lee, SC
    Kang, SW
    Kwon, IC
    Jeong, SY
    JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS, 2000, 38 (18) : 2400 - 2408
  • [37] Thermoreversible phase transitions of amphiphilic poly(2-ethyl-2-oxazoline)/poly(ε-caprolactone) block copolymers in aqueous solutions.
    Kim, CH
    Lee, SC
    ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 1999, 218 : U446 - U446
  • [38] Precise control of lower critical solution temperature of thermosensitive poly(2-isopropyl-2-oxazoline) via gradient copolymerization with 2-ethyl-2-oxazoline as a hydrophilic comonomer
    Park, Joon-Sik
    Kataoka, Kazunori
    MACROMOLECULES, 2006, 39 (19) : 6622 - 6630
  • [39] Self-Assembly Behavior of Amphiphilic Poly(2-ethyl-2-oxazoline)-b-poly(2-isostearyl-2-oxazoline) Block Copolymers
    Lefley, James
    Terracciano, Roberto
    Varanaraja, Zivani
    Beament, James
    Becer, C. Remzi
    MACROMOLECULES, 2024, 57 (12) : 5881 - 5891
  • [40] Influence of arm length on aqueous solution behavior of thermosensitive poly(2-isopropyl-2-oxazoline) stars
    Amirova, Alina
    Golub, Olga
    Kirila, Tatyana
    Razina, Alla
    Tenkovtsev, Andrey
    Filippov, Alexander
    COLLOID AND POLYMER SCIENCE, 2017, 295 (01) : 117 - 124
12345