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Record W2067169752 · doi:10.1021/ma0115951

Effect of Silica as Fillers on Polymer Interdiffusion in Poly(butyl methacrylate) Latex Films

2002· article· en· W2067169752 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.

Bibliographic record

VenueMacromolecules · 2002
Typearticle
Languageen
FieldChemistry
TopicSurfactants and Colloidal Systems
Canadian institutionsUniversity of Toronto
FundersHoneywell Federal Manufacturing and Technologies
KeywordsPolymerMaterials scienceGlass transitionMethacrylateAnnealing (glass)Surface energyComposite materialChemical engineeringMethyl methacrylatePolymer chemistryColloidCopolymer

Abstract

fetched live from OpenAlex

In this paper, we examine the influence of silica as fillers on polymer interdiffusion in poly(butyl methacrylate) latex films. We carry out fluorescence resonance energy transfer (FRET) measurements on latex films that allow us to follow the extent of polymer diffusion as a function of time after the latex/pigment dispersion dries. In this study, we compare four different types of colloidal silica and discuss how fillers affect the rate of polymer interdiffusion in latex films. The efficiency of energy transfer data for newly formed films indicate that 54 and 73 nm diameter SiO 2 particles have little or no effect on the interfacial area between donor- and acceptor-labeled latex cells, whereas the 16 and 27 nm SiO 2 particles significantly reduce the interfacial area with increasing amounts of filler. The maximum efficiency of energy transfer data indicate that 16 and 27 nm SiO 2 also affect the extent of mixing that can be achieved in 200 h annealing at 60 °C. The rate of polymer interdiffusion in latex films is retarded as one increases the amount of filler, and this rate decreases as the filler size decreases. Our results can be explained with a free volume model that assumes that the surface of the silica particles raises the effective glass transition temperature of the matrix.

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)0.000
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 score0.075
Threshold uncertainty score0.994

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)0.0070.000

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 head0.007
GPT teacher head0.233
Teacher spread0.226 · 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