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Record W1979388557 · doi:10.1021/ma062073u

Orientationally Controlled Nanoporous Cylindrical Domains in Polystyrene-<i>b</i>-poly(ferrocenylethylmethylsilane) Block Copolymer Films

2007· article· en· W1979388557 on OpenAlex
David A. Rider, Kevin A. Cavicchi, Lawrence Vanderark, Thomas P. Russell, Ian Manners

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.

Bibliographic record

VenueMacromolecules · 2007
Typearticle
Languageen
FieldMaterials Science
TopicBlock Copolymer Self-Assembly
Canadian institutionsUniversity of Toronto
Fundersnot available
KeywordsCopolymerNanoporousMaterials sciencePolystyreneAmorphous solidAnnealing (glass)Morphology (biology)Chemical engineeringPolymer chemistryThin filmSolventTolueneCylinderEvaporationComposite materialNanotechnologyCrystallographyChemistryPolymerOrganic chemistry

Abstract

fetched live from OpenAlex

The self-assembly of thin films of organometallic cylinder-forming amorphous polystyrene- block -polyferrocenylsilane diblock copolymers is described. By varying film thickness and/or the conditions of toluene during evaporation annealing, well-ordered arrays of hexagonally packed iron-rich cylindrical microdomains oriented either parallel to or normal to the substrate were produced. In the latter case, when the film thickness was very small (12−15 nm), well-defined nanoporous cylindrical domains were found. This unique morphology persists in UV ozone etched films where inorganic, ring-like cylindrical domains were produced. By varying the rate of solvent evaporation from solvent-swollen films, control over the orientation, order, and size of the cylindrical microdomains was achieved and variation of the fundamental morphology was observed.

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)
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 score0.011
Threshold uncertainty score1.000

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0010.000
Meta-epidemiology (narrow)0.0010.001
Meta-epidemiology (broad)0.0010.000
Bibliometrics0.0000.001
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0010.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0010.001

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 head0.008
GPT teacher head0.252
Teacher spread0.244 · 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