Grafting of Poly(ε-caprolactone) and Poly(ε-caprolactone-<i>b</i><i>lock</i>-(dimethylamino)ethyl methacrylate) from Polymer Microspheres by Ring-Opening Polymerization and ATRP
Bibliographic record
Abstract
We report the ring-opening polymerization (ROP) of ε-caprolactone catalyzed by Al(Et) 3 and Al[OCH(CH 3 ) 2 ] 3 from lightly cross-linked poly(DVB80- co -HEMA) microspheres. The resulting poly(ε-caprolactone) grafted particles with active propagating ends were converted to macroinitiators for ATRP and used further to graft (dimethylamino)ethyl methacrylate (DMAEMA) to produce microspheres grafted with block copolymer. The ROP of ε-caprolactone from the poly(DVB80- co -HEMA) microspheres was carried out both at room temperature and at 70 °C for different reaction times to produce particles with different graft loadings. The subsequent grafting of poly(DMAEMA) blocks using ATRP led to significant particle size increases and to high amine loadings of 5.10 mmol/g of dry particles. The grafted particles were characterized using ESEM, FT-IR, 1 H NMR, Coulter particle sizing, and potentiometric titration.
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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 | 0.001 | 0.000 |
| Meta-epidemiology (narrow) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.001 | 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".