Metathesized Vegetable Oils for the Production of Polyurethane Polymers
Bibliographic record
Abstract
Abstract Polyurethanes (PUs) produced by the polycondensation reaction of polyols and diisocyanates are an important class of polymers with a wide variety of applications. Traditionally, these materials are derived from petroleum feedstocks. Presently, vegetable oils are attracting attention as an alternative to petroleum for the development of bio‐based polyols and PUs. To mitigate the inherent limitations of the triacylglycerol (TAG) structures of the natural oil in PUs, new strategies have been developed for the transformation of the natural feedstocks. Olefin metathesis is a versatile and powerful modification approach used on vegetable oil to produce fine chemicals and novel metathesized triacylglycerol (MTAG) structures including TAG‐like structures with terminal functionality and oligomers of TAGs. The present article reports on the recent development in the application of the product of metathesis‐modified natural oils for the preparation of polyols and PUs. It focuses on the role of the unique structures of the polyols obtained from MTAG on the final PU properties.
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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 | 0.006 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| 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 | 0.001 | 0.001 |
| 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 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".