Utilizing bio‐derived amine‐terminated thermoplastic polyhydroxyurethanes as crosslinkers for hybrid thermosets
Why this work is in the frame
A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.
Bibliographic record
Abstract
Abstract Bio‐sourced amine‐terminated polyhydroxyurethanes (PHUs) are obtained by terpolymerizing bio‐based diglycerol dicarbonate (DGC) or mannitol biscarbonate (MBC) with Priamine 1074 and 1,10‐diaminodecane (DAD). Partially bio‐based thermoset non‐isocyanate polyurethane (NIPU) hybrids with high biorenewable carbon content (84%–95%) are obtained by using the synthesized PHUs as crosslinkers with cyclic carbonated copolymers derived from epoxy‐functional templates. The latter are derived from the atom transfer radical polymerization (ATRP) of an alkyl methacrylate (C13MA, with an average side‐chain length of 13) and epoxy‐functional glycidyl methacrylate (GMA) mixtures (initial GMA mol fraction = 0.1–0.3). By manipulating template functionality as well as type of crosslinker, crosslinked NIPU hybrids are achieved with Young's moduli ranging from 2.35 ± 0.45 to 20.85 ± 1.73 MPa for DGC‐based crosslinkers and 1.24 ± 0.61 to 6.45 ± 1.05 MPa for MBC‐based ones. Moreover, with increased density of urethane linkages, networks become tighter as measured by swelling ratios ( SR ) of the networks in tetrahydrofuran (THF), consistent with the estimated molecular weight between crosslinks obtained rheologically. The crosslinked NIPUs display high conversions, ranging from 75% to 95%, despite being solvent‐ or catalyst‐free systems.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
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 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.002 |
| 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 it