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Record W4286203076 · doi:10.1021/acs.macromol.2c00721

A Self-Consistent Field Theory Formalism for Sequence-Defined Polymers

2022· article· en· W4286203076 on OpenAlexfundno aff
Oliver Xie, Bradley D. Olsen

Bibliographic record

VenueMacromolecules · 2022
Typearticle
Languageen
FieldMaterials Science
TopicBlock Copolymer Self-Assembly
Canadian institutionsnot available
FundersBasic Energy SciencesFonds de recherche du Québec – Nature et technologies
KeywordsFormalism (music)PolymerSequence (biology)Statistical physicsPhysicsComputational chemistryChemistryNuclear magnetic resonance

Abstract

fetched live from OpenAlex

Sequence-defined polymers open up a high-dimensional space for molecular self-assembly and material design, requiring more advanced tools for exploration of this space. Here, classical self-consistent field theory (SCFT) is extended to sequence-defined polymers; this new formalism uses a set of four-dimensional fields and a set of descriptor functions representing the polymer sequence. The self-consistent equations resulting from this formalism are invariant to sequence complexity. Its computational cost is shown to be a factor N s (number of points used to discretize the polymer contour length) more expensive than the current SCFT formalism. A variety of copolymers of varying complexity are simulated with the new sequence SCFT formalism and are shown to match literature results. Additionally, sequence SCFT is shown to enable a method of investigating the configurational distribution of polymer chains which make up a phase-separated structure. The ease at which this new formalism handles complex polymer sequences will enable new discoveries of design rules governing sequence-controlled polymer properties.

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 machine prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.

metaresearch head score (Codex)0.001
metaresearch head score (Gemma)0.001
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Theoretical or conceptual · Consensus signal: Theoretical or conceptual
GenreCandidate signal: Empirical · Consensus signal: none
Teacher disagreement score0.003
Threshold uncertainty score0.009

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0010.001
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0010.001
Bibliometrics0.0010.001
Science and technology studies0.0010.001
Scholarly communication0.0010.001
Open science0.0010.000
Research integrity0.0010.001
Insufficient payload (model declined to judge)0.0030.000

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 head0.014
GPT teacher head0.246
Teacher spread0.231 · 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 source (direct Gemma or distilled Codex), not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designTheoretical or conceptual
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

Citations7
Published2022
Admission routes1
Has abstractyes

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