Probing the Micro-Phase Separation of Thermo-Responsive Amphiphilic Polymer in Water/Ethanol Solution

被引：11
作者：
Labuta, Jan [1 ]
Hill, Jonathan P. [1 ,2 ]
Hanykova, Lenka [3 ]
Ishihara, Shinsuke [1 ]
Ariga, Katsuhiko [1 ,2 ]
机构：
[1] Natl Inst Mat Sci, Supermol Grp, WPI Ctr Mat Nanoarchitecton, Tsukuba, Ibaraki 3050044, Japan
[2] Core Res Evolut Sci & Technol, Japan Sci & Technol Agcy JST, Tsukuba, Ibaraki 3050044, Japan
[3] Charles Univ Prague, Fac Math & Phys, Dept Macromol Phys, CR-18000 Prague 8, Czech Republic
来源：
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY | 2010年 / 10卷 / 12期
基金：
日本科学技术振兴机构;
关键词：
Poly(vinyl methyl ether); Temperature Induced Transition; Coil-Globule Transition; Nuclear Magnetic Resonance Spectroscopy; Differential Scanning Calorimetry; Optical Microscopy; THERMOTROPIC PHASE-TRANSITION; POLY(VINYL METHYL-ETHER); SOLVENT INTERACTIONS; MATERIAL RELEASE; HYDRATION; H-1-NMR; FILMS; WATER;
D O I：
10.1166/jnn.2010.3016
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The temperature-induced coil globule transition (micro-phase separation) in water/ethanol solutions of poly(vinyl methyl ether) was studied using NMR spectroscopy, differential scanning calorimetry, optical microscopy and dynamic light scattering. NMR sequence based on spin-echo was introduced in order to determine lower critical solution temperature with high accuracy. Variation in DSC profiles and enthalpy increments depending on ethanol concentration in a water/ethanol mixture was found. Evolution of morphology pattern during heating-cooling cycle was observed using optical microscopy. At lower PVME concentration the globule size distribution was determined using digital image processing. Relative number and relative mass size distributions of globules in a dilute sample were measured by differential scanning calorimetry and subsequently compared with those obtained by optical microscopy.
引用
收藏
页码：8408 / 8416
页数：9
相关论文
共 45 条
[1]   Langmuir Films of Unusual Components [J].
Acharaya, Somobrata ;
Shundo, Atsuomi ;
Hill, Jonathan P. ;
Ariga, Katsuhiko .
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, 2009, 9 (01) :3-18
[2]   Nanorod-Driven Orientational Control of Liquid Crystal for Polarization-Tailored Electro-Optic Devices [J].
Acharya, Somobrata ;
Kundu, Sudarshan ;
Hill, Jonathan P. ;
Richards, Gary J. ;
Ariga, Katsuhiko .
ADVANCED MATERIALS, 2009, 21 (09) :989-+
[3]   Soft Langmuir-Blodgett Technique for Hard Nanomaterials [J].
Acharya, Somobrata ;
Hill, Jonathan P. ;
Ariga, Katsuhiko .
ADVANCED MATERIALS, 2009, 21 (29) :2959-2981
[4]   Challenges and breakthroughs in recent research on self-assembly [J].
Ariga, Katsuhiko ;
Hill, Jonathan P. ;
Lee, Michael V. ;
Vinu, Ajayan ;
Charvet, Richard ;
Acharya, Somobrata .
SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS, 2008, 9 (01)
[5]   A layered mesoporous carbon sensor based on nanopore-filling cooperative adsorption in the liquid phase [J].
Ariga, Katsuhiko ;
Vinu, Ajayan ;
Ji, Qingmin ;
Ohmori, Osamu ;
Hill, Jonathan P. ;
Acharya, Somobrata ;
Koike, Jun ;
Shiratori, Seimei .
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2008, 47 (38) :7254-7257
[6]   Chiral recognition at the air-water interface [J].
Ariga, Katsuhiko ;
Michinobu, Tsuyoshi ;
Nakanishi, Takashi ;
Hill, Jonathan P. .
CURRENT OPINION IN COLLOID & INTERFACE SCIENCE, 2008, 13 (1-2) :23-30
[7]   Self-assembled microstructures of functional molecules [J].
Ariga, Katsuhiko ;
Nakanishi, Takashi ;
Hill, Jonathan P. .
CURRENT OPINION IN COLLOID & INTERFACE SCIENCE, 2007, 12 (03) :106-120
[8]   Layer-by-layer assembly as a versatile bottom-up nanofabrication technique for exploratory research and realistic application [J].
Ariga, Katsuhiko ;
Hill, Jonathan P. ;
Ji, Qingmin .
PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2007, 9 (19) :2319-2340
[9]   Coupling of soft technology (layer-by-layer assembly) with hard materials (mesoporous solids) to give hierarchic functional structures [J].
Ariga, Katsuhiko ;
Ji, Qingmin ;
Hill, Jonathan P. ;
Vinu, Ajayan .
SOFT MATTER, 2009, 5 (19) :3562-3571
[10]  
Ariga K, 2009, EXPERT OPIN BIOL TH, V9, P307, DOI [10.1517/14712590802715772, 10.1517/14712590802715772 ]
12345