Butyl Acrylate/Vinyl Acetate Miniemulsion Polymerization: A Study on Compartmentalization
Bibliographic record
Abstract
Abstract Summary: A series of butyl acrylate/vinyl acetate miniemulsions were investigated. Two procedures were used to prepare the miniemulsions: one in which the monomers were mixed together, sonicated, and polymerized, and the other, in which the individual monomers were sonicated prior to mixing and then polymerized. Kinetic and final properties of the obtained polymers were compared. The two procedures offer interesting insights into monomer compartmentalization in miniemulsions. In most cases, there were no differences in monomer conversion, copolymer composition, particle size or average molecular weights between the two procedures. ATR‐FTIR spectroscopy was used to assess possible monomer transfer. The spectra obtained from each polymerization procedure were compared and no evidence of compartmentalization was found. Both procedures yielded similar spectra indicating that monomer transfer between particles occurred. In addition, adhesive properties of the obtained latexes were investigated. Due to the fact that relatively large amounts of CTA were used, adhesive performance was poor. Comparison of the spectra of miniemulsion polymerizations obtained by two different procedures (BA/VAc 85/15 wt/wt). image Comparison of the spectra of miniemulsion polymerizations obtained by two different procedures (BA/VAc 85/15 wt/wt).
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot 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.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
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.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
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".