Jatropha curcas hydroxylated and urethanated polymeric material – Preparation and characterization
Bibliographic record
Abstract
Jatropha curcas oil was hydroxylated with formic acid in the presence of excess hydrogen peroxide to give polyhydroxylated oil with hydroxyl value of 170mgKOH/g. Through the hydroxyl group of the polyhydroxylated oil, urethane moieties were successfully appended on to the triacylglycerol to obtain the urethanated oil. The reactions were followed by both Infrared and nuclear magnetic resonance. Infrared analysis was performed on a Nicolet 380 Fourier-transform infrared (FTIR) spectrophotometer using NaCl cells. 1H-nuclear magnetic resonance (NMR) and 13C-NMR were obtained on a Bruker Avance 400 NMR spectrophotometer. Physico-chemical characterisation of the samples for iodine value (IV), saponification value (SV) and hydroxyl value (HV) were carried out titrimetrically. Thermal transitions of the products were studied on a differential scanning calorimeter (DSC). The grafting process, spectroscopic characterisation, film and solvent properties of the resulted product are hereby discussed. Keywords: Polyhydroxyl, Urethanated, Jatropha curcas oil, Synthesis, Characterisation.
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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 | 0.000 | 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 | 0.000 | 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".