Bio‐based and hydrolytically degradable hydroxyurethane acrylates as photocurable thermosets
Bibliographic record
Abstract
Abstract This study focuses on the synthesis of bio‐based and hydrolytically degradable photocurable thermosets made from hydroxyurethane acrylates (HUA). The hydroxyurethanes (HUs) are prepared from the reaction between ethylene carbonate and a bio‐based diamine, Priamine 1074. Subsequently, the HU initiates the ring opening polymerization of ε‐caprolactone (CL), resulting in telechelic groups of 5 CL units at both ends of the HU. The resulting HU‐CL 5 is finally acrylated to prepare the degradable HUA (HU‐CL 5 ‐A) with transformations confirmed following each step via proton nuclear magnetic resonance ( 1 H‐NMR) and Fourier‐transform infrared (FTIR) spectroscopies. HU‐CL 5 ‐A is photocured with 4‐acryloylmorpholine (ACMO) as a photosensitive reactive diluent. The photocurable thermosets exhibit slight water swelling (swelling index of 46%), as Priamine 1074 and ACMO are hydrophobic and hydrophilic, respectively, leading to the slow and partial degradation of the films in water at 85°C for 14 days. The cleavage of the CL units from the film networks is proven via 1 H‐NMR and FTIR, which demonstrates the main objective of this study in synthesizing photocurable and degradable HUA resins.
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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 | 0.001 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.000 | 0.001 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 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".