Citrate esters as plasticizers for poly(lactic acid)

Labrecque, L. V.; Kumar, Rajesh; Davé, Vipul; Gross, Richard A.; McCarthy, Stephen P.

doi:10.1002/(sici)1097-4628(19971121)66:8<1507::aid-app11>3.0.co;2-0

Cited by 429 publications

(312 citation statements)

References 2 publications

Supporting

Mentioning

293

Contrasting

Unclassified

Order By: Relevance

“…Labrecque et al [19] studied the effect of plasticizers on the thermal properties of PLA and they have found that all plasticizers were miscible with PLA. The reason for good solubility of PLA in citrate plasticizers is due to the polar interactions between the ester groups of PLA and the plasticizer [20] .…”

Section: Differential Scanning Calorimetry (Dsc)mentioning

confidence: 99%

“…Thus, good miscibility between PLA and plasticizers is essential. Various plasticizers, which have been proved as effective plasticizers for PLA, citrate esters are used as plasticizers with a variety of different polymers such as poly (methyl methacrylate) [18] and cellulose acetate [19] . They are nontoxic and approved for use as additives in food, personal care products, and in medical plastics [18] .…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Biobased additive plasticizing Polylactic acid (PLA)

et al. 2015

View full text Add to dashboard Cite

SbstractPolylactic acid (PLA) is an attractive candidate for replacing petrochemical polymers because it is from renewable resources. In this study, a specific PLA 2002D was melt-mixed with two plasticizers: triethyl citrate (TEC) and acetyl tributyl citrate (ATBC). The plasticized PLA with various concentrations were analyzed by differential scanning calorimetry (DSC), dynamic mechanical analysis (DMA), melt flow index (MFI), thermogravimetric analysis (TGA), X-ray diffraction (XRD), UV-Visible spectroscopy and plasticizer migration test. Differential scanning calorimetry demonstrated that the addition of TEC and ATBC resulted in a decrease in glass transition temperature (T g ), and the reduction was the largest with the plasticizer having the lowest molecular weight (TEC). Plasticizing effect was also shown by decrease in the dynamic storage modulus and viscosity of plasticized mixtures compared to the treated PLA. The TGA results indicated that ATBC and TEC promoted a decrease in thermal stability of the PLA. The X-ray diffraction showed that the PLA have not polymorphic crystalline transition. Analysis by UV-Visible spectroscopy showed that the two plasticizers: ATBC and TEC have no effect on the color change of the films. The weight loss plasticizer with heating time and at 100°C is lesser than at 135 °C. Migration of TEC and ATBC results in cracks and changed color of material. We have concluded that the higher molecular weight of citrate in the studied exhibited a greater plasticizing effect to the PLA.

show abstract

Section: Differential Scanning Calorimetry (Dsc)mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Biobased additive plasticizing Polylactic acid (PLA)

et al. 2015

View full text Add to dashboard Cite

show abstract

“…In this paper TBC, as plasticizer, was added to the PLLA, PPC and PVAc, with the purpose of decreasing its glass transition temperature and improving their miscibility. PLLA is miscible with low molecular weight plasticizers like glycerol [23] , triactine [24] and low molecular weight citrates [25] . The aim of this work was to investigate the newly developed blends of PLLA and PPC with additives (PHB, PVAc and TBC).…”

Section: Introductionmentioning

confidence: 99%

The effect of additives interaction on the miscibility and crystal structure of two immiscible biodegradable polymers

El-Hadi¹

2014

Polímeros

View full text Add to dashboard Cite

Poly lactic acid (PLLA) is a promising biopolymer, obtained from polymerization of lactic acid that is derived from renewable resources through fermentation. The characteristic brittleness of PLLA is attributed to slow crystallization rates, which results in the formation of the large spherulites. Its glass temperature is relative high, above room temperature and close to 60 °C, and therefore its applications are limited. The additives poly((R)-3-hydroxybutyrate) (PHB), poly(vinyl acetate) (PVAc) and tributyl citrate (TBC) were used as compatibilizers in the biodegradable polymer blend of (PLLA/PPC). Results from DSC and POM analysis indicated that the blends of PLLA and PPC are immiscible. However, the blends with additives are miscible. TBC as plasticizer was added to PLLA to reduce its Tg. PVAc was used as compatibilizer to improve the miscibility between PLLA and PPC. FT-IR showed about 7 cm -1 shift in the C=O peak in miscible blends due to physical interactions. POM experiments together with the results of DSC and WAXD showed that PHB enhances the crystallization behavior of PLLA by acting as bio nuclei and the crystallization process can occur more quickly. Consequently an increase was observed in the peak intensity in WAXD.

show abstract

“…[4][5][6][7][8] ment of the flexibility could also be achieved by blending it with low-molecular-weight plasticizers such as citrate esters, polyethylene glycol, polypropylene glycol, and oligomeric lactic acid. [9][10][11][12][13][14][15][16] Epoxidized soybean oil (ESO) is used as a plasticizer for PLA by increasing the elongation at break of the polymer and as well as depressing the glass transition temperature of the plasticized PLA. Carbon nanotubes (CNTs) have received much attention because of their fascinating properties, such as high modulus and high electrical/thermal conductivity.…”

mentioning

confidence: 99%

Influence of Multiwalled Carbon Nanotubes on Biodegradable Poly(lactic acid) Nanocomposites for Electroactive Shape Memory Actuator

2016

View full text Add to dashboard Cite

Poly(lactic acid)/epoxidized soybean oil/carbon nanotubes (PLA/ESO/CNTs) nanocomposites were prepared by the solution blending process, and the influence of ESO on the properties of the composites was studied. Differential scanning calorimetry and X-ray diffraction revealed that the addition of CNTs improved the crystallinity of the nanocomposites. The modulus increased with the addition of CNTs content in the composites. Morphological characterizations were done by scanning electron microscopy and transmission electron microscopy. Electrical conductivity of PLA/ESO/CNT composites increased with the addition of CNTs. This study revealed that the addition of ESO facilitated the dispersion of the CNTs in the PLA matrix. C

show abstract

Citrate esters as plasticizers for poly(lactic acid)

Cited by 429 publications

References 2 publications

Biobased additive plasticizing Polylactic acid (PLA)

Biobased additive plasticizing Polylactic acid (PLA)

The effect of additives interaction on the miscibility and crystal structure of two immiscible biodegradable polymers

Influence of Multiwalled Carbon Nanotubes on Biodegradable Poly(lactic acid) Nanocomposites for Electroactive Shape Memory Actuator

Contact Info

Product

Resources

About