Sorption Behavior of n-Butyl Acetate Esterification Components in Poly(ether block amide) (PEBA) Membrane
Bibliographic record
Abstract
The sorption behaviors of esterification reaction components in poly(ether block amide) (PEBA) membrane were investigated by using experimental and model calculation methods. The PEBA membrane which usually can be used in pervaporation process was prepared by solvent casting method. The sorption amount of water/organic component of binary liquid mixtures over a wide concentration range in the PEBA membrane were calculated by using Flory-Huggins and UNIQUAC models, respectively. The interaction parameters of the Flory-Huggins model were determined by the solubility parameters method, and in the UNIQUAC model, the binary interaction parameters between the solvent and the membrane were obtained by data fitting of the equilibrium adsorption of the pure solvent with the membrane, and the binary interaction parameters between all pairs of esterification reaction components presented in the swollen PEBA membrane were obtained by fitting their vapor-liquid equilibrium data obtained from literatures. The results show that the PEBA exhibits to be a good hydrophobic material, and its preferential sorption selectivity for four studied components follows the sequence of n-butyl acetate n-butanol acetic acid water. For the same binary liquid mixture, the agreement of the sorption curves calculated separately by Flory-Huggins and UNIQUAC models is fairly good.
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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".