Nitroxide-Mediated Semibatch Polymerization for the Production of Low-Molecular Weight Solvent-Borne Coating Resins
Bibliographic record
Abstract
Nitroxide-mediated polymerization is being explored as an alternative to free-radical chemistry for production of solvent-borne polymers (Mn<6000) used in automotive coatings. Through the production of polymer with decreased polydispersity and more defined composition and chain structure, it may be possible to increase polymer content in solution and decrease the required levels of higher-cost functional monomers. Results for styrene polymerization mediated by 4-hydroxy-TEMPO, combined with insight gained through computer simulation, illustrate some of the technical challenges that must be overcome to maintain the current semibatch industrial process technology, including efficient nitroxide usage at the high concentrations required during startup, and maintaining sufficient reaction rate to match current batch times.
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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".