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Record W2989397158 · doi:10.1021/acsapm.9b00832

Green Toughness Modifier from Downstream Corn Oil in Improving Poly(lactic acid) Performance

2019· article· en· W2989397158 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.
fundA Canadian funder is recorded on the work.

Bibliographic record

VenueACS Applied Polymer Materials · 2019
Typearticle
Languageen
FieldMaterials Science
Topicbiodegradable polymer synthesis and properties
Canadian institutionsUniversity of Guelph
FundersAgriculture and Agri-Food CanadaNatural Sciences and Engineering Research Council of CanadaOntario Ministry of Agriculture, Food and Rural AffairsUniversity of Guelph
KeywordsToughnessMaterials scienceUltimate tensile strengthIzod impact strength testEpoxidized soybean oilLactic acidComposite materialScanning electron microscopePolymerElongationPolylactic acidChemical engineeringOrganic chemistryChemistryRaw material

Abstract

fetched live from OpenAlex

A green multifunctional toughness modifier for poly(lactic acid) (PLA) was successfully synthesized from the derivatives of downstream corn oil (a coproduct of bioethanol industry) and itaconic acid. The efficiency of the synthesized toughness modifier, monomethyl itaconated epoxidized downstream corn oil (MIECO), was evaluated with a different loading percentage of it (5–15 wt %) in the PLA matrix. A dynamic cross-linking strategy was taken to achieve toughened PLA by using multifunctional MIECO in the presence of a radical initiator. During melt blending, the multifunctional MIECO self-polymerized and reacted with functional groups of PLA to produce a rubbery part within the PLA matrix and compatibilized the blend. The fabricated PLA–MIECO blends demonstrated a remarkably enhanced elongation at break (18 times), tensile toughness (11 times), and notched Izod impact (131%) compared to those of pristine PLA. The scanning electron microscopic (SEM) images confirmed that cavities were generated by debonding of polymerized MIECO from PLA matrix, which provides a plastic deformation and excellent toughness in the PLA–MIECO blends. The synthesized multifunctional toughness modifier and the strategy will pave a way to other biopolymers for expanding their performances and applicability.

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)0.001
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 categoriesInsufficient payload (model declined to judge)
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 score0.079
Threshold uncertainty score1.000

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0010.000
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 science0.0010.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0070.003

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 head0.013
GPT teacher head0.199
Teacher spread0.186 · 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