Rate exchange rather than relaxation controls structural recovery
Literature Information
Birte Riechers, Ranko Richert
We observe structural recovery after an electric field step by probing the dielectric loss profile near its maximum, which displays a field-induced shift towards lower frequencies. These dynamics display time aging-time superposition (TaTS) for the majority of relaxation modes, thus implying homogeneous recovery dynamics. Although assumed by generally accepted models, the same modes can not be responsible for structural relaxation and for structural recovery, as the former is heterogeneous and the latter is homogeneous regarding the nature of the dynamics. This conflict is resolved by proposing that structural recovery is governed by rate exchange, a process that refers to the homogeneous fluctuations of rate constants in equilibrium and restores ergodicity more slowly than the relaxation observed as a simple correlation decay. This recognition has wide-ranging consequences on how aging and nonlinear dynamics such as scanning calorimetry should be modeled.
Recommended Journals
Related Literature
Polydipyrrole- and polydicarbazole-nanorods as new nanosized supports for DNA hybridization
Jean-Paul Lellouche, Senthil Govindaraji, Augustine Joseph, Jyongsik Jang, Kyung Jin Lee
DOI: 10.1039/B502483H
Ketonization of the remarkably strongly acidic elongated enol generated by flash photolytic decarboxylation of p-benzoylphenylacetic acid in aqueous solution
Yvonne Chiang, A. Jerry Kresge, Ikenna Onyido, John P. Richard, Peter Wan, Musheng Xu
DOI: 10.1039/B506706E
Virus–glycopolymer conjugates by copper(i) catalysis of atom transfer radical polymerization and azide–alkyne cycloaddition
Sayam Sen Gupta, Krishnaswami S. Raja, Eiton Kaltgrad, Erica Strable, M. G. Finn
DOI: 10.1039/B502444G
Highly luminescent water-soluble CdTe nanowires as fluorescent probe to detect copper(ii)
Bo Tang, Jinye Niu, Chengguang Yu, Linhai Zhuo, Jiechao Ge
DOI: 10.1039/B502978C
The synthesis of tris(perfluoroalkyl)phosphines
Makeba B. Murphy-Jolly, Lesley C. Lewis, Andrew J. M. Caffyn
DOI: 10.1039/B507752D
The first ternary tin(ii) nitride: NaSnN
Nicholas S. P. Watney, Zoltán A. Gál, Matthew D. S. Webster, Simon J. Clarke
DOI: 10.1039/B505208D
μ-η3:η4-Lithiocene and η3:η3-zincocene incorporating 1,2-diaza-3,5-diborolyl, a cyclopentadienyl analog
Hanh. V. Ly, Taryn. D. Forster, Darren Maley, Masood Parvez, Roland Roesler
DOI: 10.1039/B508152A
Networked calix[4]arenepolymers with unusual mechanical properties
Joseph N. Grima, Kenneth E. Evans
DOI: 10.1039/B505839B
Dendritic supramolecular assemblies for drug delivery
Meredith T. Morgan, Michael A. Carnahan, Stella Finkelstein, Carla A. H. Prata, Lovorka Degoricija, Stephen J. Lee, Mark W. Grinstaff
DOI: 10.1039/B502411K
Precise synthesis of poly(macromonomer)s containing sugars by repetitive ring-opening metathesis polymerisation
James J. Murphy, Kotohiro Nomura
DOI: 10.1039/B506877K
You might also like
How should waste containing N-Methoxy-N-methyl-1,3-thiazole-5-carboxamide (CAS: 898825-89-3) be handled?
Waste containing N-Methoxy-N-methyl-1,3-thiazole-5-carboxamide (CAS: 898825-89-3...
How should N-(4-Biphenylyl)dibenzo[b,d]furan-4-amine (CAS: 1318338-47-4) be stored?
N-(4-Biphenylyl)dibenzo[b,d]furan-4-amine should be stored in a tightly sealed c...
What is the market or research trend for 3-Acetamido-5-amino-2,4,6-triiodobenzoic acid (CAS: 1713-07-1)?
The market for 3-Acetamido-5-amino-2,4,6-triiodobenzoic acid (CAS: 1713-07-1) is...
How should Benzyl 2-O-acetyl-3,4,6-tri-O-benzyl-beta-D-galactopyranoside (CAS: 61820-03-9) be stored?
Benzyl 2-O-acetyl-3,4,6-tri-O-benzyl-beta-D-galactopyranoside (CAS: 61820-03-9) ...
What regulatory guidelines apply to 2-Ethylpiperazine dihydrochloride (CAS: 438050-52-3)?
2-Ethylpiperazine dihydrochloride (CAS: 438050-52-3) is regulated under the Glob...
What regulatory guidelines apply to 1,1'-[1,3-Phenylenebis(methylene)]bis(3-methyl-1H-pyrrole-2,5-dione) (CAS: 119462-56-5)?
1,1'-[1,3-Phenylenebis(methylene)]bis(3-methyl-1H-pyrrole-2,5-dione) (CAS: 11946...
Are there alternatives to 5-Fluoro-2-(1-pyrrolidinyl)pyridine (CAS: 1287217-79-1) in synthesis?
Several alternatives can be used in the synthesis of 5-Fluoro-2-(1-pyrrolidinyl)...
What precautions should be taken when handling 1-((2R,3R,4R,5R)-5-((bis(4-methoxyphenyl)(phenyl)methoxy)methyl)-4-hydroxy-3-methoxytetrahydrofuran-2-yl)-5-methylpyrimidine-2,4(1H,3H)-dione (CAS: 153631-19-7)?
Proper personal protective equipment (PPE) must be worn when handling this compo...
What precautions should be taken when handling 6-Bromoimidazo[1,2-a]pyridin-8-amine (CAS: 676371-00-9)?
When handling 6-Bromoimidazo[1,2-a]pyridin-8-amine, it is important to wear appr...
Are there alternatives to (2S,4R)-4-(4-Nitrobenzyl)pyrrolidine-2-carboxylic acid hydrochloride (CAS: 1049740-22-8) in synthesis?
Alternatives to (2S,4R)-4-(4-Nitrobenzyl)pyrrolidine-2-carboxylic acid hydrochlo...
Source Journal
Physical Chemistry Chemical Physics

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.














