Hydrogel Microspheres by Thermally Induced Coacervation of Poly(<i>N,N</i>-dimethylacrylamide-<i>c</i><i>o</i>-glycidyl methacrylate) Aqueous Solutions
Bibliographic record
Abstract
Aqueous solutions of poly( N,N -dimethacrylamide- co -glycidyl methacrylate) (DMA−GMA) are shown to undergo liquid−liquid phase separation upon heating. The phase transition temperatures as measured by the cloud point method decreased with increasing levels of the hydrophobic GMA comonomer. The initially formed coacervate microdroplets could be cross-linked by addition of polyamines. The morphology of the resulting hydrogel microspheres depends on both coacervation conditions and cross-linking conditions. Specifically, colloidally stable microspheres were formed at temperatures slightly above the phase transition temperatures, while agglomeration took place at higher temperatures. Low molecular weight polyamines are effective internal cross-linkers for the coacervate droplets, while higher molecular weight polyamines resulted in agglomeration. Addition of sodium dodecyl sulfate increased the phase transition temperatures of polymer solutions dramatically, while addition of poly(vinylpyrrolidone) (PVP) did not affect the phase separation temperatures and could be used as a steric stabilizer.
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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) | 0.000 | 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 | 0.001 | 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".