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Record W3107597934 · doi:10.1002/cjce.23954

Computational analysis of short‐range surface‐directed polymerization‐induced phase separation

2020· article· en· W3107597934 on OpenAlexafffundvenue
Shima Ghaffari, Philip K. Chan, Mehrab Mehrvar

Bibliographic record

VenueThe Canadian Journal of Chemical Engineering · 2020
Typearticle
Languageen
FieldMaterials Science
TopicBlock Copolymer Self-Assembly
Canadian institutionsToronto Metropolitan University
FundersNatural Sciences and Engineering Research Council of CanadaCompute CanadaRyerson University
KeywordsSpinodal decompositionWettingMaterials sciencePhase (matter)PolymerizationSurface energyRange (aeronautics)ThermodynamicsWetting layerExponentSurface tensionPolymerChemistryComposite material

Abstract

fetched live from OpenAlex

Abstract The conventional off‐critical polymerization‐induced phase separation (PIPS) of binary mixtures leads to the fabrication of droplet‐type structure. However, the presence of a surface preferably attracting one of the components while phase separation by spinodal decomposition is occurring can change the configuration of surface energy and result in the formation of wetting layer(s) adjacent to the wall. Farther from the wall, droplets can still form. The method is called surface‐directed spinodal decomposition. The method is applicable in the fabrication of materials with layered morphology and may lead to the enhancement of the surface physical characteristics of mixtures. The current paper theoretically studied short‐range surface‐directed PIPS of a solvent/monomer mixture. The results showed the average diameter of particles in the bulk in the intermediate stage of phase separation grew with time by power‐law function < d ave > ∝ t * α , and the exponent ( α ave ≈ 0.3) was found close to the Lifshitz‐Slyozov growth exponent (1/3) for the diffusivities studied in this paper. The time evolution of the thickness of the wetting layer was found to be logarithmic. The effects of the parameters such as diffusion coefficient, surface potential, and temperature gradient on the morphology development by the short‐range surface‐directed PIPS technique are discussed in this paper.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Bench or experimental · Consensus signal: Bench or experimental
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.150
Threshold uncertainty score0.385

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.001
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0000.000

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.017
GPT teacher head0.250
Teacher spread0.233 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one teacher head, not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designBench or experimental
Domainnot available
GenreEmpirical

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

Quick stats

Citations6
Published2020
Admission routes3
Has abstractyes

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