Effects of diffusion‐controlled reactions on atom‐transfer radical polymerization
Why this work is in the frame
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Bibliographic record
Abstract
Abstract A kinetic model incorporating effects of diffusion‐controlled reactions on atom‐transfer radical polymerization (ATRP) was developed. The reactions considered to be diffusion‐controlled are monomer propagation, bimolecular radical termination, chain transfer between propagating radical and catalyst, and transfer to small molecules. Model predictions indicate that a diffusion‐controlled propagation reduces the “living” behavior of the system, whereas a diffusion‐controlled termination enhances its livingness. When diffusion‐controlled transfer between chains and catalyst is considered the same in the forward and backward directions, the livingness of the system is enhanced, but if one of them is kept unchanged while the other is increased, the livingness of the system is reduced. When diffusion‐controlled termination is important, our simulations show that the overall effect of diffusion‐controlled phenomena in ATRP is to enhance the livingness of the system. Experimental data from the literature for styrene, methyl methacrylate, and methyl acrylate ATRP homopolymerizations validate the kinetic model.
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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) | 0.003 | 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 it