New correlation model for the HLB Values of ethylene oxide and propylene oxide block copolymers
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Bibliographic record
Abstract
The hydrophile-lipophile balance (HLB) value is a key parameter in determining the solution properties of surfactants. The HLB value is not only a function of the numbers of hydrophilic and lipophilic units, but also depends on their locations on the chain. All the previous correlation models for the HLB values from the group contribution method neglected the locations of units and assumed that the contribution is in proportion with the number of groups. This paper introduces a decay function for the contribution of the sequential units for the block copolyether of ethylene oxide (EO) and propylene oxide (PO), and developes the following new equation for the relationship between the numbers n of EO unit, m of PO unit and the HLB value VHLB as follows: V_(HLB)=A_0+f×A_(EO)ln(1+n)+f×A_(PO)ln(1+m) Results of linear regressions for the HLB values on a series of tri-block and bi-block copolyethers of EO and PO indicatedthat this new equation has much better correlation with the experimental data than the previous models reported in the literature.
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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 it