The Relationship between Starch Gelatinization and Morphology Control in Melt‐Processed Polymer Blends with Thermoplastic Starch
Bibliographic record
Abstract
Abstract Critical aspects of starch plasticization in glycerol/excess water mixtures are analyzed in order to determine the time/temperature boundaries ultimately required for the successful plasticization of starch in a polymer melt‐processing environment. These findings are then related to the morphology of melt‐blended TPS in PCL. The onset and conclusion temperatures for wheat starch gelatinization in the presence of various excess water/glycerol mixtures were obtained. Dynamic studies of wheat starch gelatinization show that if the temperature is sufficiently high, gelatinization takes place within 60 s for the excess water/glycerol/wheat starch mixture and within 3 min for the glycerol/wheat starch case. Morphological studies indicate the inability of glycerol alone to plasticize native starch within the time constraints of melt extrusion. The efficacy of plasticization is demonstrated by a dramatic six‐fold reduction in the dispersed TPS phase size and a unimodal TPS phase size distribution in the blend system. magnified image
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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".