A quantitative study of the rapid shrinking kinetics of sub-millimetre N-isopropylacrylamide gels

Literature Information

Publication Date
DOI 10.1039/A809794A
Impact Factor 3.676
Authors


View Original

Abstract

Sub-millimetre spherical gels of composition 70:10:20 mol% N-isopropylacrylamide:N,N′-tert-butylacrylamide:N,N′-dimethylacrylamide were prepared by inverse suspension polymerisation. The shrinking kinetics of cylindrical and spherical gels of various sizes were determined by image analysis. We are able to describe the shrinking kinetics in the transition region, as, in the size range studied, the gels showed no shape distortion during temperature jumps (T-jumps) to temperatures in the transition region. We define T* to be the temperature at which the gel is fully collapsed, and, for the gels studied, T* is >38°C. All gels relaxed to their equilibrium size exponentially after T-jumps to temperatures below T*(TfT*. The relaxation times reported here for sub-millimetre gels are significantly faster than any previously reported, and approach the timescales required for invivo medical devices.

Related Literature

Selective oxidation of alcohols in aqueous suspensions of rhodium ion-modified TiO2 photocatalysts under irradiation of visible light

Sho Kitano, Atsuhiro Tanaka, Keiji Hashimoto, Hiroshi Kominami

2014-05-08 Paper

DOI: 10.1039/C4CP00863D

Perfect spin filtering and large spin thermoelectric effects in organic transition-metal molecular junctions

X. F. Yang, Y. S. Liu, X. Zhang, L. P. Zhou, X. F. Wang, F. Chi, J. F. Feng

2014-04-15 Paper

DOI: 10.1039/C4CP00390J

Direct CO oxidation by lattice oxygen on the SnO2(110) surface: a DFT study

Zhansheng Lu, Dongwei Ma, Lin Yang, Xiaobing Wang, Guoliang Xu, Zongxian Yang

2014-04-28 Paper

DOI: 10.1039/C4CP00540F

Structural relaxation of vapor-deposited molecular glasses and supercooled liquids

Kikujiro Ishii, Hideyuki Nakayama

2014-04-24 Perspective

DOI: 10.1039/C4CP00458B

Computational investigation of structural and electronic properties of aqueous interfaces of GaN, ZnO, and a GaN/ZnO alloy

Neerav Kharche, Mark S. Hybertsen, James T. Muckerman

2014-03-24 Paper

DOI: 10.1039/C4CP00486H

You might also like

Compound Q&A

What precautions should be taken when handling 4-Methyl-6-(trifluoromethyl)quinoline (CAS: 40716-16-3)?

When handling 4-Methyl-6-(trifluoromethyl)quinoline (CAS: 40716-16-3), safety go...

40716-16-34-Methyl-6-(trifluor...
Compound Q&A

What is 4-(3,5-Difluorophenyl)aniline (CAS: 405058-00-6)?

4-(3,5-Difluorophenyl)aniline is an aromatic organic compound with the CAS numbe...

405058-00-64-(3,5-Difluoropheny...
Compound Q&A

How is 5-{[4-(Trifluoromethyl)phenyl]sulfanyl}-1,2,3-thiadiazole-4-carboxylic acid (CAS: 338982-07-3) typically synthesized?

5-{[4-(Trifluoromethyl)phenyl]sulfanyl}-1,2,3-thiadiazole-4-carboxylic acid can ...

338982-07-35-{[4-(Trifluorometh...
Compound Q&A

What is the market or research trend for 4-Benzylaniline hydrochloride (CAS: 6317-57-3)?

The market for 4-Benzylaniline hydrochloride (CAS: 6317-57-3) is steadily growin...

6317-57-34-Benzylaniline hydr...
Compound Q&A

Is [3-(Diethylsulfamoyl)phenyl]boronic acid (CAS: 871329-58-7) safe?

[3-(Diethylsulfamoyl)phenyl]boronic acid is generally considered safe when handl...

871329-58-7[3-(Diethylsulfamoyl...
Compound Q&A

What are the main uses of 3-Bromo-2,5-dimethoxyaniline (CAS: 115929-62-9)?

3-Bromo-2,5-dimethoxyaniline is mainly used in the pharmaceutical and chemical i...

115929-62-93-Bromo-2,5-dimethox...
Compound Q&A

What regulatory guidelines apply to N-Methyl-1-(5-methyl-1H-indol-3-yl)methanamine (CAS: 915922-67-7)?

N-Methyl-1-(5-methyl-1H-indol-3-yl)methanamine (CAS: 915922-67-7) is subject to ...

915922-67-7N-Methyl-1-(5-methyl...
Compound Q&A

What industries use Carbamic acid, N-[(5S)-5,6-diamino-6-oxohexyl]-, 1,1-dimethylethyl ester (CAS: 24828-96-4)?

This compound is primarily used in the pharmaceutical industry for the synthesis...

24828-96-4Carbamic acid, N-[(5...
Compound Q&A

How should 2-Methyl-2-propanyl [(1S,3R)-3-aminocyclohexyl]carbamate (CAS: 1298101-47-9) be stored?

2-Methyl-2-propanyl [(1S,3R)-3-aminocyclohexyl]carbamate (CAS: 1298101-47-9) sho...

1298101-47-92-Methyl-2-propanyl ...
Compound Q&A

What industries use Ethyl 2-bromo-4,4,4-trifluorobutanoate (CAS: 367-33-9)?

Ethyl 2-bromo-4,4,4-trifluorobutanoate (CAS: 367-33-9) is utilized in the pharma...

367-33-9Ethyl 2-bromo-4,4,4-...

Source Journal

Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics
CiteScore: 5.5
Self-citation Rate: 10.3%
Articles per Year: 3036

Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.

Recommended Suppliers

Disclaimer
This page provides academic journal information for reference and research purposes only. We are not affiliated with any journal publishers and do not handle publication submissions. For publication-related inquiries, please contact the respective journal publishers directly.
If you notice any inaccuracies in the information displayed, please contact us at support@chemtradehub.com. We will promptly review and address your concerns.