Review of Multifarious Applications of Poly (Lactic Acid)

Chen, Yuan Yuan; Geever, Luke M.; Killion, John A.; Lyons, John G.; Higginbotham, Clement L.; Devine, Declan M.

doi:10.1080/03602559.2015.1132465

Cited by 137 publications

(70 citation statements)

References 131 publications

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“…Moreover, the perpendicular SiO stretching at 1119 cm −1 was widened, and the intensity of SiO bonding at 790 and 750 cm −1 increased, shown in Figure (a). The characteristic peaks of PLA located at 2995 and 2946.34 cm −1 which are attributed to CH stretch, and 1750 cm −1 connecting with stretching of the CO carbonyl group, shown in Figure (b) . When PLA was blended with the ASP‐modified HNTs, the peaks at 2996 and 2945 cm −1 shifted and new peaks appeared at 2924 and 2853 cm −1 [Figure (c)].…”

Section: Resultsmentioning

confidence: 99%

Surface‐modified halloysite nanotubes reinforced poly(lactic acid) for use in biodegradable coronary stents

Chen

Murphy

Scholz

et al. 2018

J of Applied Polymer Sci

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Poly(lactic acid) (PLA) was reinforced halloysite nanotubes (HNTs) in this study. To improve dispersion and interfacial adhesion of HNTs within the PLA matrix, HNTs were surface modified with 3‐aminopropyltriethoxysilane (ASP) prior to compounding with PLA. PLA/ASP‐HNTs nanocomposites were characterized by differential scanning calorimetry (DSC), Fourier transfer infrared spectroscopy (FTIR), surface wettability, thermogravimetric analysis, transmission electron microscopy (TEM), and tensile testing. The hemocompatibility and cytocompatibility of PLA and PLA composites were investigated and the in vitro degradation process of PLA/ASP‐HNTs composites was investigated for a period of 6 months by gel permeation chromatography, FTIR, weight loss measurement, DSC, and tensile testing. PLA and all PLA composites were blood compatibile and non‐cytotoxic. TEM analysis revealed that HNTs agglomeration in PLA matrix was reduced by surface treatment with ASP. ASP‐HNTs had better reinforcing effect than unmodified HNTs evidenced by tensile testing. ASP‐HNTs appeared to increase the hydrolytic degradation process as measured by weight measurement. PLA/ASP‐HNTs composites displayed 12.1% weight loss and 30.6% average molecular weight reduction while retaining 74% of Young's modulus by the 24th week of degradation. Based on this data, the reinforcement of PLA using ASP‐HNTs may prove beneficial for applications such as biodegradable stents. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 135, 46521.

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Section: Resultsmentioning

confidence: 99%

Surface‐modified halloysite nanotubes reinforced poly(lactic acid) for use in biodegradable coronary stents

Chen

Murphy

Scholz

et al. 2018

J of Applied Polymer Sci

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“…Polylactic acid is considered as a promising substitute to petroleum‐based materials because of its biodegradability, renewability, ease of fabrication, biocompatibility, and better mechanical stability . PLA‐based polymers are becoming a popular candidate for energy harvesting applications owing to their higher piezoelectric properties.…”

Section: Piezoelectric Polymers: a Productive Alternative To Piezo‐cementioning

confidence: 99%

Advances in Piezoelectric Polymer Composites for Energy Harvesting Applications: A Systematic Review

Mishra

Unnikrishnan

Nayak

et al. 2018

Macro Materials & Eng

373

293

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Polymeric piezoelectric composites for energy harvesting applications are considered a significant research field which provides the convenience of mechanical flexibility, suitable voltage with sufficient power output, lower manufacturing cost, and rapid processing compared to ceramic‐based composites. This review focuses majorly on the basic theory and principles behind piezoelectric energy harvesting (PEH) devices, followed by specified materials used for the different devices. Different structural configurations associated with fabrication of PEH devices are discussed in detail along with their major advantages and drawbacks. Numerous classes of piezoelectric polymers such as polyvinylidene fluoride, polylactic acid, cellulose, polyamides, polyurea, polyurethanes, and their composites used for energy harvesting applications as a productive alternative of lead‐based piezo‐ceramics, are extensively addressed and explored. Additionally, current global and Indian scenarios associated with PEH devices, major challenges associated with them, and the future perspective of such devices are also reported in this review.

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“…Among the synthetic biodegradable polymers, poly(lactic acid), PLA, has been the focus of much attention because it is produced from renewable resources, is biodegradable and compostable, exhibits mechanical properties comparable with many commercial polymers, and can be melt processed using conventional thermoplastic processing equipment. Consequently, there is now a great deal of information available in the literature on PLA and its properties, modifications, and applications …”

Section: Introductionmentioning

confidence: 99%

Synthesis and Characterization of Chemically‐Modified Cassava Starch Grafted with Poly(2‐Ethylhexyl Acrylate) for Blending with Poly(Lactic Acid)

et al. 2018

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Native cassava starch (CS) is chemically modified by grafting with 2-ethylhexyl acrylate (EHA) monomer to make it more hydrophobic for improved blending with poly(lactic acid) (PLA). Grafting is carried out using CS:EHA weight ratios of 2:1, 1:1, 1:2, and 1:3 in a methanol-water solvent mixture at 45 C for 48 h. L-Ascorbic acid and hydrogen peroxide are used as the redox initiating system. Following purification, the poly(2-ethylhexyl acrylate)-grafted starch, starch-g-PEHA, is obtained either as a finely divided powder or as a slightly tacky solid with % grafting values in the range of 13-26% by weight. The main objective of this chemical modification is to improve the interfacial adhesion between the starch particles and the PLA matrix through the hydrophobic PLA-PEHA interactions. PLA/starch-g-PEHA blends are prepared in the form of solution-cast films with weight ratios ranging from 100/0 to 60/40. Tensile testing of the films shows a marked increase in extensibility and toughness up to a loading of 10% starch-g-PEHA above which the properties deteriorated rapidly due to starch particle aggregation. Thus, for potential use as biodegradable film packaging, the best properties are obtained for the PLA/starch-g-PEHA 90/10 blend.

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Review of Multifarious Applications of Poly (Lactic Acid)

Cited by 137 publications

References 131 publications

Surface‐modified halloysite nanotubes reinforced poly(lactic acid) for use in biodegradable coronary stents

Surface‐modified halloysite nanotubes reinforced poly(lactic acid) for use in biodegradable coronary stents

Advances in Piezoelectric Polymer Composites for Energy Harvesting Applications: A Systematic Review

Synthesis and Characterization of Chemically‐Modified Cassava Starch Grafted with Poly(2‐Ethylhexyl Acrylate) for Blending with Poly(Lactic Acid)

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