Plasticization of poly(lactide) with blends of tributyl citrate and low molecular weight poly(d,l-lactide)-b-poly(ethylene glycol) copolymers

Lemmouchi, Yahia; Murariu, Marius; Santos, Ana Margarida Dos; Amass, Allan J.; Schacht, Etienne; Dubois, Philippe

doi:10.1016/j.eurpolymj.2009.07.006

Cited by 152 publications

(104 citation statements)

References 50 publications

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“…Firstly, the addition of a small quantity of PCL expands the distance of PLA molecule chain and therefore decreases its apparent viscosity. 31 In addition, transesterification reaction between PLA and PCL may happen. Transesterification reactions of polyesters are often associated with of the decrease in molecular weight and the broadening of molecular weight distribution which results in the decrease the apparent viscosity of PLA/PCL blends compared that of pure PLA and pure PCL.…”

Section: 폴리머 제38권 제4호 2014년mentioning

confidence: 99%

Microstructure, Thermal Properties and Rheological Behavior of PLA/PCL Blends for Melt-blown Nonwovens

Sun¹,

Yu²,

Hán³

et al. 2014

Polymer Korea

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Poly(lactic acid) (PLA) and poly(ε-caprolactone) (PCL) blends with various components for melt-blown nonwovens were prepared by a twin-screw extruder. Tributyl citrate (TBC) was added in order to improve the miscibility between PLA and PCL. The results showed that small circular particles of PCL were dispersed in PLA matrix uniformly. The addition of PCL had the heterogeneous nucleation effect on the crystallization of PLA and decreased thermal stability of PLA. The flow of pure PLA and blends approached to Newtonian liquid at a low shear rate and expressed more obvious viscoelasticity at a high shear rate.

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Section: 폴리머 제38권 제4호 2014년mentioning

confidence: 99%

Microstructure, Thermal Properties and Rheological Behavior of PLA/PCL Blends for Melt-blown Nonwovens

Sun¹,

Yu²,

Hán³

et al. 2014

Polymer Korea

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“…Thermal properties and crystallinity of treated and plasticized PLA with TEC and ATBC at various concentrations. enhanced with a higher plasticizer content as a result from the enhanced chain mobility [23] .…”

Section: Differential Scanning Calorimetry (Dsc)mentioning

confidence: 99%

Biobased additive plasticizing Polylactic acid (PLA)

et al. 2015

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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.

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“…On the other hand, this polymer has some drawbacks as well, including moisture sensitivity, fast physical ageing, poor impact resistance and relatively high price [4][5][6]. As a consequence, many attempts have been made to modify it by plasticization [7][8][9][10][11][12][13], copolymerization [14][15][16][17][18][19], blending [20,21] or by the production of particulate filled or fiber reinforced composites [11][12][13][22][23][24][25][26][27][28][29][30].…”

Section: Introductionmentioning

confidence: 99%

Structure, properties and interfacial interactions in poly(lactic acid)/polyurethane blends prepared by reactive processing

Imre

Bedő

Domján

et al. 2013

European Polymer Journal

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Plasticization of poly(lactide) with blends of tributyl citrate and low molecular weight poly(d,l-lactide)-b-poly(ethylene glycol) copolymers

Cited by 152 publications

References 50 publications

Microstructure, Thermal Properties and Rheological Behavior of PLA/PCL Blends for Melt-blown Nonwovens

Microstructure, Thermal Properties and Rheological Behavior of PLA/PCL Blends for Melt-blown Nonwovens

Biobased additive plasticizing Polylactic acid (PLA)

Structure, properties and interfacial interactions in poly(lactic acid)/polyurethane blends prepared by reactive processing

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