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Tuning thermal transport in highly cross-linked polymers by bond-induced void engineering

2021· article· en· W3110699018 on OpenAlex

Why this work is in the frame

A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.

affAt least one author lists a Canadian institution in the pinned OpenAlex snapshot.
fundA Canadian funder is recorded on the work.

Bibliographic record

VenuePhysical Review Materials · 2021
Typearticle
Languageen
FieldMaterials Science
TopicThermal properties of materials
Canadian institutionsUniversity of British Columbia
FundersCanada First Research Excellence Fund
KeywordsPolymervan der Waals forceThermalMonomerContext (archaeology)Molecular dynamicsCovalent bond

Abstract

fetched live from OpenAlex

Tuning the heat flow is fundamentally important for the design of advanced functional materials. Here polymers are of particular importance because they provide different pathways for the energy transfer. More specifically, the heat flow between the two covalently bonded monomers is over 100 times faster than between the two nonbonded monomers interacting via the van der Waals (vdW) forces. Therefore, the delicate balance between these two contributions often provides a guiding tool for the tunability in thermal transport coefficient $\ensuremath{\kappa}$ of the polymeric materials. Traditionally most studies have investigated $\ensuremath{\kappa}$ in the linear polymeric materials, the recent interests have also been directed towards the highly cross-linked polymers (HCP). In this work, using the generic molecular dynamics simulations, we investigate the factors effecting $\ensuremath{\kappa}$ of HCP. We emphasize the importance of the cross-linking bond types and their influence on the network microstructure, with a goal of providing a guiding principle for the tunability in $\ensuremath{\kappa}$. While these simulation results are discussed in the context of the available experimental data, we also make predictions.

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.

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)0.001
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesMeta-epidemiology (narrow), Insufficient payload (model declined to judge)
Consensus categoriesInsufficient payload (model declined to judge)
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 score0.004
Threshold uncertainty score1.000

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0010.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0010.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.001
Open science0.0010.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0050.001

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 head0.019
GPT teacher head0.278
Teacher spread0.259 · 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