Matches in SemOpenAlex for { <https://semopenalex.org/work/W4382023305> ?p ?o ?g. }
Showing items 1 to 83 of
83
with 100 items per page.
- W4382023305 abstract "The primary plasticizers for the world’s most plasticized polymer, poly(vinyl chloride) (PVC), are organic phthalates, this despite being categorized as probable human carcinogens by the EPA. Di-2-ethylhexyl phthalate (DEHP or DOP) is such a typical PVC plasticizer. We sought to find an alternative plasticizer that lowered the glass transition temperature (Tg) and softened PVC, but was not as harmful to the environment and for our health as the currently employed phthalate plasticizers. We recently discovered that urea (U) could complex with amorphous polymers, such as atactic poly(methyl methacrylate) (PMMA) and poly(vinyl acetate) (PVAc). Compared to neat samples, the Tgs of the PMMA-U and PVAc-U complexes were increased and decreased, respectively. However, when complexed with dimethylurea (DMU), the Tg of the PMMA-DMU complex was lowered. Since Tgs of PMMA and PVAc were lowered by either U or one of its derivatives, this prompted us to investigate whether they could interact and complex with another largely amorphous polymer PVC, that is often plasticized, to soften and lower its Tg. Shifts in the vibrational frequencies observed by Fourier-Transform Infrared spectroscopy and Differential Scanning Calorimetry thermograms indicated that U, its derivative tetramethylurea (TMU)], and the related compound Acetamide (AC) were complexing with PVC. All three complexes (PVC-U, -TMU, and –AC) showed significantly lowered Tgs. Preliminary mechanical property measurements of PVC-U and PVC-AC films showed they were softer and more pliable than PVC films. Consequently, we believe our preliminary results warrant further examination of U, AC, and TMU as potential effective and less harmful PVC plasticizers." @default.
- W4382023305 created "2023-06-27" @default.
- W4382023305 creator A5002277195 @default.
- W4382023305 creator A5004534901 @default.
- W4382023305 creator A5005616148 @default.
- W4382023305 creator A5005916936 @default.
- W4382023305 creator A5014566953 @default.
- W4382023305 creator A5028972268 @default.
- W4382023305 creator A5063245084 @default.
- W4382023305 creator A5067671235 @default.
- W4382023305 creator A5092263041 @default.
- W4382023305 creator A5092263042 @default.
- W4382023305 date "2023-06-26" @default.
- W4382023305 modified "2023-09-26" @default.
- W4382023305 title "Potential Replacement of Toxic PVC Plasticizers with Urea, Its Derivatives, and Related Compounds" @default.
- W4382023305 doi "https://doi.org/10.26434/chemrxiv-2023-tx97v" @default.
- W4382023305 hasPublicationYear "2023" @default.
- W4382023305 type Work @default.
- W4382023305 citedByCount "0" @default.
- W4382023305 crossrefType "posted-content" @default.
- W4382023305 hasAuthorship W4382023305A5002277195 @default.
- W4382023305 hasAuthorship W4382023305A5004534901 @default.
- W4382023305 hasAuthorship W4382023305A5005616148 @default.
- W4382023305 hasAuthorship W4382023305A5005916936 @default.
- W4382023305 hasAuthorship W4382023305A5014566953 @default.
- W4382023305 hasAuthorship W4382023305A5028972268 @default.
- W4382023305 hasAuthorship W4382023305A5063245084 @default.
- W4382023305 hasAuthorship W4382023305A5067671235 @default.
- W4382023305 hasAuthorship W4382023305A5092263041 @default.
- W4382023305 hasAuthorship W4382023305A5092263042 @default.
- W4382023305 hasBestOaLocation W43820233051 @default.
- W4382023305 hasConcept C121332964 @default.
- W4382023305 hasConcept C122865956 @default.
- W4382023305 hasConcept C13965031 @default.
- W4382023305 hasConcept C15920480 @default.
- W4382023305 hasConcept C159985019 @default.
- W4382023305 hasConcept C178790620 @default.
- W4382023305 hasConcept C185592680 @default.
- W4382023305 hasConcept C188027245 @default.
- W4382023305 hasConcept C192562407 @default.
- W4382023305 hasConcept C2776093513 @default.
- W4382023305 hasConcept C2776866176 @default.
- W4382023305 hasConcept C2781005124 @default.
- W4382023305 hasConcept C2781460079 @default.
- W4382023305 hasConcept C39519442 @default.
- W4382023305 hasConcept C521977710 @default.
- W4382023305 hasConcept C56052488 @default.
- W4382023305 hasConcept C58968531 @default.
- W4382023305 hasConcept C97355855 @default.
- W4382023305 hasConceptScore W4382023305C121332964 @default.
- W4382023305 hasConceptScore W4382023305C122865956 @default.
- W4382023305 hasConceptScore W4382023305C13965031 @default.
- W4382023305 hasConceptScore W4382023305C15920480 @default.
- W4382023305 hasConceptScore W4382023305C159985019 @default.
- W4382023305 hasConceptScore W4382023305C178790620 @default.
- W4382023305 hasConceptScore W4382023305C185592680 @default.
- W4382023305 hasConceptScore W4382023305C188027245 @default.
- W4382023305 hasConceptScore W4382023305C192562407 @default.
- W4382023305 hasConceptScore W4382023305C2776093513 @default.
- W4382023305 hasConceptScore W4382023305C2776866176 @default.
- W4382023305 hasConceptScore W4382023305C2781005124 @default.
- W4382023305 hasConceptScore W4382023305C2781460079 @default.
- W4382023305 hasConceptScore W4382023305C39519442 @default.
- W4382023305 hasConceptScore W4382023305C521977710 @default.
- W4382023305 hasConceptScore W4382023305C56052488 @default.
- W4382023305 hasConceptScore W4382023305C58968531 @default.
- W4382023305 hasConceptScore W4382023305C97355855 @default.
- W4382023305 hasLocation W43820233051 @default.
- W4382023305 hasOpenAccess W4382023305 @default.
- W4382023305 hasPrimaryLocation W43820233051 @default.
- W4382023305 hasRelatedWork W1965896380 @default.
- W4382023305 hasRelatedWork W1966565548 @default.
- W4382023305 hasRelatedWork W1975267612 @default.
- W4382023305 hasRelatedWork W2045298618 @default.
- W4382023305 hasRelatedWork W2102927797 @default.
- W4382023305 hasRelatedWork W2137500247 @default.
- W4382023305 hasRelatedWork W2230996765 @default.
- W4382023305 hasRelatedWork W2370307040 @default.
- W4382023305 hasRelatedWork W2799837928 @default.
- W4382023305 hasRelatedWork W4313839563 @default.
- W4382023305 isParatext "false" @default.
- W4382023305 isRetracted "false" @default.
- W4382023305 workType "article" @default.