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Record W2061747283 · doi:10.1021/ma990435a

Interaction Forces between Adsorbed Layers of Associative Polymer

2000· article· en· W2061747283 on OpenAlexaff
H. S. Kim, Willie Lau, Eugenia Kumacheva

Bibliographic record

VenueMacromolecules · 2000
Typearticle
Languageen
FieldMaterials Science
TopicPolymer Surface Interaction Studies
Canadian institutionsUniversity of Toronto
Fundersnot available
KeywordsMonolayerAdsorptionEthylene oxidePolymerAqueous solutionChemical engineeringMoleculeOxideChemistrySurface forces apparatusTelechelic polymerMicellePolymer chemistryMaterials scienceCopolymerOrganic chemistryNanotechnologyEnd-group

Abstract

fetched live from OpenAlex

We have measured normal quasi-equilibrium forces between adsorbed layers formed on hydrophilic surfaces in aqueous solutions of telechelic poly(ethylene oxide) end-terminated with octadecyl groups. At low polymer concentrations, c pol, a monolayer adsorbs, which has properties similar to the monolayer of adsorbed nonhydrophobized poly(ethylene oxide). At moderate concentrations of ca. c pol ≈ c cmc, a multilayer adsorbs onto the surface, which is presumably formed by micelles adsorbed onto the top of a monolayer. The adsorbed layers exhibit repulsion on approach and attraction on separation of the surfaces; the latter evolves after several/decompression cycles. The adhesion energy increases with the time that the compressed layers are maintained in contact and with the extent of compression of the adsorbed layers. We attribute the attraction between the adsorbed layers to bridging between the hydrophobic groups of molecules adsorbed onto opposite surfaces.

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 categoriesInsufficient payload (model declined to judge)
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 score0.018
Threshold uncertainty score0.998

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0030.001

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 head0.018
GPT teacher head0.289
Teacher spread0.271 · 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.

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

Citations16
Published2000
Admission routes1
Has abstractyes

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