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Record W2037069972 · doi:10.1177/0954008311433605

Poly(ethylene glycol) as a compatibilizer and plasticizer of poly(lactic acid)/clay nanocomposites

2012· article· en· W2037069972 on OpenAlex

Why this work is in the frame

A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.

affAt least one author lists a Canadian institution in the pinned OpenAlex snapshot.

Bibliographic record

VenueHigh Performance Polymers · 2012
Typearticle
Languageen
FieldMaterials Science
Topicbiodegradable polymer synthesis and properties
Canadian institutionsNational Research Council Canada
FundersFondo de Fomento al Desarrollo Científico y TecnológicoComisión Nacional de Investigación Científica y Tecnológica
KeywordsMaterials scienceThermogravimetric analysisNanocompositeDifferential scanning calorimetryEthylene glycolChemical engineeringPlasticizerPEG ratioGlass transitionCrystallizationScanning electron microscopeLactic acidPolymer chemistryComposite materialPolymer

Abstract

fetched live from OpenAlex

Nanocomposites of poly(lactic acid), PLA, and poly(lactic acid)/poly(ethylene glycol), PLA/PEG, with clay modified with methyl-bis(2-hydroxyethyl) tallow alkyl ammonium cations (Cloisite 30B) were prepared by melt-blending methods. The influence of PEG content on the structure and thermal properties of nanocomposites was investigated. Comparative samples of the PLA/PEG blends with different PEG content were also considered. X-ray diffraction (XRD), transmission electron microscopy (TEM), scanning electron microscopy (SEM), thermogravimetric analysis (TGA) and differential scanning calorimetric (DSC) were used to characterize the studied samples. From XRD, SEM and TEM results, it can be concluded that PEG molecules co-intercalate the silicate layers of Cloisite 30B, together with PLA, allowing better parallel stacking of the silicate layers and the interaction between them. The decrease in the glass transition temperature and crystallization temperature of PLA nanocomposites with an increase in the PEG content, showed the double role of PEG as a plasticizer and as a compatibilizer during the preparation of PLA nanocomposites.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

Full frame distilled prediction

Teacher imitation

Not 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.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesMeta-epidemiology (narrow), Insufficient payload (model declined to judge)
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Bench or experimental · Consensus signal: Bench or experimental
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.170
Threshold uncertainty score1.000

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0010.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.001
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0020.000

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.

Opus teacher head0.015
GPT teacher head0.224
Teacher spread0.209 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it