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Tao Y, Zhang Y, Xia T, Lin N. Melt Compounding of Poly(lactic acid)-Based Composites: Blending Strategies, Process Conditions, and Mechanical Properties. Macromol Rapid Commun 2024:e2400380. [PMID: 39012274 DOI: 10.1002/marc.202400380] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2024] [Revised: 06/27/2024] [Indexed: 07/17/2024]
Abstract
Polylactic acid (PLA), derived from renewable resources, has the advantages of rigidity, thermoplasticity, biocompatibility, and biodegradability, and is widely used in many fields such as packaging, agriculture, and biomedicine. The excellent processability properties allow for melt processing treatments such as extrusion, injection molding, blow molding, and thermoforming in the preparation of PLA-based materials. However, the low toughness and poor thermal stability of PLA limit its practical applications. Compared with pure PLA, conditions such as processing technology, filler, and crystallinity affect the mechanical properties of PLA-based materials, including tensile strength, Young's modulus, and elongation at break. This review systematically summarizes various technical parameters for melt processing of PLA-based materials and further discusses the mechanical properties of PLA homopolymers, filler-reinforced PLA-based composites, PLA-based multiphase composites, and reactive composite strategies for PLA-based composites.
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Affiliation(s)
- Yiwen Tao
- School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan, 430070, P. R. China
| | - Yue Zhang
- School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan, 430070, P. R. China
| | - Tao Xia
- School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan, 430070, P. R. China
| | - Ning Lin
- School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan, 430070, P. R. China
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2
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Li H, Duan Y, Dong H, Zhang J. Porous poly (lactic acid)/poly (ethylene glycol) blending membrane for microorganisms encapsulation. ENVIRONMENTAL TECHNOLOGY 2024; 45:3253-3262. [PMID: 37183433 DOI: 10.1080/09593330.2023.2214682] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Accepted: 03/31/2023] [Indexed: 05/16/2023]
Abstract
ABSTRACTImmobilized microorganisms technology has been explored as a promising wastewater treatment method. To further increase the activity of the immobilized microorganisms, a porous membrane which was composed of poly (lactic acid) (PLA) and poly (ethylene glycol) (PEG) was designed for microorganism encapsulation. The plane membrane and the spherical membrane were prepared respectively. The morphology, mechanical properties, nitrate permeability, and biodegradability of the plane membranes were investigated to determine an optimized formulation. And then, denitrifying bacteria was encapsulated by the spherical membrane and its denitrification performance in synthetic wastewater was explored. The mean pore size of the PLA/PEG plane membranes ranged from 2.09 ± 0.63 μm to 3.15 ± 1.32 μm. PEG stimulated interconnected pore structure of the PLA/PEG plane membrane. Compare with neat PLA membrane, the tensile strength of the PLA/50%PEG plane membrane decreased by about 53.2% and elongation at break increased by about 103.5%. Nitrate permeability attained a maximum of 188.95 ± 4.59 mg·L-1·m-2·h-1 for PLA/50%PEG plane membrane. The denitrifying active sludge enclosed with the spherical membrane showed good denitrification performance in a short start-up time. The nitrate removal rate reached 51.14% on the 4th day and 82.53% on the 17th day. This porous PLA/50%PEG membrane was good for the diffusion of substrates and nutrients, which enabled the encapsulated microorganism recovered activity in a short time. The spraying method made the microorganism encapsulation could be designed according to the different microorganisms and different user environments, which expanded the application scope of microorganism encapsulation technology.
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Affiliation(s)
- Hua Li
- Key Lab of South China Sea Fishery Resources Exploitation & Utilization, Ministry of Agriculture, Guangdong Provincial Key Lab of Fishery Ecology Environment, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Science, Guangzhou, People's Republic of China
- Key Laboratory of Efficient Utilization and Processing of Marine Fishery Resources of Hainan Province, Sanya Tropical Fisheries Research Institute, Sanya, PRChina
| | - Yafei Duan
- Key Lab of South China Sea Fishery Resources Exploitation & Utilization, Ministry of Agriculture, Guangdong Provincial Key Lab of Fishery Ecology Environment, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Science, Guangzhou, People's Republic of China
| | - Hongbiao Dong
- Key Lab of South China Sea Fishery Resources Exploitation & Utilization, Ministry of Agriculture, Guangdong Provincial Key Lab of Fishery Ecology Environment, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Science, Guangzhou, People's Republic of China
| | - Jiasong Zhang
- Key Lab of South China Sea Fishery Resources Exploitation & Utilization, Ministry of Agriculture, Guangdong Provincial Key Lab of Fishery Ecology Environment, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Science, Guangzhou, People's Republic of China
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3
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Huang N, Wang F, Zhang R, Cao Z, Sun W, Ma Y, Tan J, Zhu X. Biodegradable Hydrogenated Dimer Acid-Based Plasticizers for PLA with Excellent Plasticization, Thermal Stability and Gas Resistance. Molecules 2024; 29:2526. [PMID: 38893402 PMCID: PMC11173700 DOI: 10.3390/molecules29112526] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2024] [Revised: 05/21/2024] [Accepted: 05/24/2024] [Indexed: 06/21/2024] Open
Abstract
The use of vegetable oil-dervied plasticizers to enhance the flexibility of polylactic acid (PLA) has received much attention due to their renewability, inexpensiveness and biodegradation. However, the double bonds in vegetable oil-based plasticizers limit their compatibility with PLA, resulting in PLA-derived products with reduced flexibility. Herein, we examined soybean oil-derived hydrogenated dimer acid-based polyethylene glycol methyl ether esters (HDA-2n, 2n = 2, 4, 6 or 8, referring to the ethoxy units) developed via the direct esterification of saturated hydrogenated dimer acid and polyethylene glycol monomethyl ethers. The resulting HDA-2n was first used as a plasticizer for PLA, and the effects of the ethoxy units in HDA-2n on the overall performance of the plasticized PLA were systematically investigated. The results showed that, compared with PLA blended with dioctyl terephthalate (DOTP), the PLA plasticized by HDA-8 with the maximum number of ethoxy units (PLA/HDA-8) exhibited better low-temperature resistance (40.1 °C vs. 15.3 °C), thermal stability (246.8 °C vs. 327.6 °C) and gas barrier properties. Additionally, the biodegradation results showed that HDA-8 could be biodegraded by directly burying it in soil. All results suggest that HDA-8 could be used as green alternative to the traditional petroleum-based plasticizer DOTP, which is applied in the PLA industry.
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Affiliation(s)
- Nengkun Huang
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Fan Wang
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Ruihao Zhang
- College of Light Industry and Food Science, Nanjing Forestry University, Nanjing 210037, China
| | - Zhaolin Cao
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Wen Sun
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Yuting Ma
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Jihuai Tan
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Xinbao Zhu
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
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Zhao X, Li P, Mo F, Zhang Y, Huang Z, Yu J, Zhou L, Bi S, Peng S. Copolyester toughened poly(lactic acid) biodegradable material prepared by in situ formation of polyethylene glycol and citric acid. RSC Adv 2024; 14:11027-11036. [PMID: 38586443 PMCID: PMC10995670 DOI: 10.1039/d4ra00757c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Accepted: 03/20/2024] [Indexed: 04/09/2024] Open
Abstract
Polylactic acid (PLA) is a high-modulus, high-strength bio-based thermoplastic polyester with good biodegradability, which is currently a promising environmentally friendly material. However, its inherent brittleness has hindered its widespread use. In this study, we reported a simple and non-toxic strategy for toughening PLA, using biodegradable materials such as polyethylene glycol (PEG) and citric acid (CA) as precursors. Through reactive melt blending with PLA, PEG and CA form PEGCA copolyesters in situ during blending. At the same time, CA can react with PLA and PEG, forming a copolyester structure at the interface of the two phases, improving the interfacial compatibility between PEG and PEGCA with PLA. Fourier transform infrared spectroscopy confirms this. Experimental results show that when the content of PEG/CA reaches 15% (PLA/PEG/CA-15%) in the blends, the impact strength of the blend was 4.47 kJ m-2, and the maximum elongation at break was as high as 360.1%, which were about 2 and 44 times higher than those of pure PLA, respectively. Moreover, the tensile strength was still maintained at the level of 70%. This work can expand the application of PLA in food packaging and medical supplies.
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Affiliation(s)
- Xipo Zhao
- Hubei Provincial Key Laboratory of Green Materials for Light Industry, New Materials and Green Manufacturing Talent Introduction and Innovation Demonstration Base, Hubei University of Technology Wuhan 430068 China
| | - Peidong Li
- Hubei Provincial Key Laboratory of Green Materials for Light Industry, New Materials and Green Manufacturing Talent Introduction and Innovation Demonstration Base, Hubei University of Technology Wuhan 430068 China
| | - Fan Mo
- Hubei Provincial Key Laboratory of Green Materials for Light Industry, New Materials and Green Manufacturing Talent Introduction and Innovation Demonstration Base, Hubei University of Technology Wuhan 430068 China
| | - Yuejun Zhang
- Hubei Provincial Key Laboratory of Green Materials for Light Industry, New Materials and Green Manufacturing Talent Introduction and Innovation Demonstration Base, Hubei University of Technology Wuhan 430068 China
| | - Zepeng Huang
- Hubei Provincial Key Laboratory of Green Materials for Light Industry, New Materials and Green Manufacturing Talent Introduction and Innovation Demonstration Base, Hubei University of Technology Wuhan 430068 China
| | - Jiajie Yu
- Hubei Provincial Key Laboratory of Green Materials for Light Industry, New Materials and Green Manufacturing Talent Introduction and Innovation Demonstration Base, Hubei University of Technology Wuhan 430068 China
| | - Ling Zhou
- Hubei Provincial Key Laboratory of Green Materials for Light Industry, New Materials and Green Manufacturing Talent Introduction and Innovation Demonstration Base, Hubei University of Technology Wuhan 430068 China
| | - Siwen Bi
- Hubei Provincial Key Laboratory of Green Materials for Light Industry, New Materials and Green Manufacturing Talent Introduction and Innovation Demonstration Base, Hubei University of Technology Wuhan 430068 China
| | - Shaoxian Peng
- Hubei Provincial Key Laboratory of Green Materials for Light Industry, New Materials and Green Manufacturing Talent Introduction and Innovation Demonstration Base, Hubei University of Technology Wuhan 430068 China
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Chen L, Luo L, Mao Z, Wang B, Feng X, Sui X. Electrothermal Phase Change Composite with Flexibility over a Wide Temperature Range for Wearable Thermotherapy. ACS APPLIED MATERIALS & INTERFACES 2024; 16:4089-4098. [PMID: 38268145 DOI: 10.1021/acsami.3c17269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/26/2024]
Abstract
Flexible electrothermal composite phase change materials (PCMs) are promising candidates for portable thermotherapy. However, a great challenge remains to achieve high PCM loading while maintaining reasonable flexibility. Herein, the polypyrrole-decorated melamine foam (PPy@MF) was fabricated and thereafter applied to confine binary PCM mixtures composed of a high-enthalpy long-chain polyethylene glycol (PEG4000) and its short-chain homologue (PEG200) to make the novel PPy@MF-PEG4000+200 composite PCM. At a high loading of up to 74.1% PEG4000 and a high latent heat energy storage density of 150.1 J/g, the composite PCM remained flexible at temperature (-20 °C) far below its phase transition point thanks to the plasticine effect of PEG200. The composite also demonstrated good Joule heating performance, providing fast heating from 28 to 70 °C at low applied voltages (4.5-6.0 V). The energy could be stored efficiently and released to maintain the composites at the proper temperature. The electrothermal performance of the composite remained undisturbed during curved or repeated bending, showing good potential to be used for personal thermal management and thermotherapy.
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Affiliation(s)
- Luying Chen
- Shanghai Frontier Science Research Center for Modern Textiles, Donghua University, Shanghai 201620, China
- Key Lab of Science and Technology of Eco-Textile, Ministry of Education, College of Chemistry and Chemical Engineering, Donghua University, Shanghai 201620, China
| | - Liushan Luo
- Shanghai Frontier Science Research Center for Modern Textiles, Donghua University, Shanghai 201620, China
- Key Lab of Science and Technology of Eco-Textile, Ministry of Education, College of Chemistry and Chemical Engineering, Donghua University, Shanghai 201620, China
| | - Zhiping Mao
- Key Lab of Science and Technology of Eco-Textile, Ministry of Education, College of Chemistry and Chemical Engineering, Donghua University, Shanghai 201620, China
- Shanghai Belt and Road Joint Laboratory of Textile Intelligent Manufacturing, Donghua University, Shanghai 201620, China
- National Innovation Center of Advanced Dyeing & Finishing Technology, Shandong Zhongkang Guochuang Research Institute of Advanced Dyeing & Finishing Technology Co., Ltd., Taìan ,Shandong 271000, China
| | - Bijia Wang
- Shanghai Frontier Science Research Center for Modern Textiles, Donghua University, Shanghai 201620, China
- Key Lab of Science and Technology of Eco-Textile, Ministry of Education, College of Chemistry and Chemical Engineering, Donghua University, Shanghai 201620, China
| | - Xueling Feng
- Shanghai Frontier Science Research Center for Modern Textiles, Donghua University, Shanghai 201620, China
- Key Lab of Science and Technology of Eco-Textile, Ministry of Education, College of Chemistry and Chemical Engineering, Donghua University, Shanghai 201620, China
- Shanghai Belt and Road Joint Laboratory of Textile Intelligent Manufacturing, Donghua University, Shanghai 201620, China
| | - Xiaofeng Sui
- Key Lab of Science and Technology of Eco-Textile, Ministry of Education, College of Chemistry and Chemical Engineering, Donghua University, Shanghai 201620, China
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Mastalygina EE, Aleksanyan KV. Recent Approaches to the Plasticization of Poly(lactic Acid) (PLA) (A Review). Polymers (Basel) 2023; 16:87. [PMID: 38201752 PMCID: PMC10781029 DOI: 10.3390/polym16010087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Revised: 12/20/2023] [Accepted: 12/21/2023] [Indexed: 01/12/2024] Open
Abstract
Poly(lactic acid) (PLA) is a polyester attracting growing interest every year in different application fields, such as packaging, cosmetics, food, medicine, etc. Despite its significant advantages, it has low elasticity that may hinder further development and a corresponding rise in volume of consumption. This review opens a discussion of basic approaches to PLA plasticization. These considerations include copolymerization and blending with flexible polymers, introducing oligomers and low-molecular additives, as well as structural modification. It was demonstrated that each approach has its advantages, such as simplicity and low cost, but with disadvantages, including complex processing and the need for additional reagents. According to the analysis of different approaches, it was concluded that the optimal option is the application of copolymers as the additives obtained via reactive mixing to PLA and its blends with other polymers.
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Affiliation(s)
- Elena E. Mastalygina
- Scientific Laboratory “Advanced Composite Materials and Technologies”, Plekhanov Russian University of Economics, 36 Stremyanny Ln., Moscow 117997, Russia
- Emanuel Institute of Biochemical Physics, Russian Academy of Sciences, 4 Kosygin St., Moscow 119991, Russia
| | - Kristine V. Aleksanyan
- Engineering Center, Plekhanov Russian University of Economics, 36 Stremyanny Ln., Moscow 117997, Russia
- Semenov Federal Research Center for Chemical Physics, Russian Academy of Sciences, 4 Kosygin St, Moscow 119991, Russia
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7
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Shahdan D, Rosli NA, Chen RS, Ahmad S, Gan S. Strategies for strengthening toughened poly(lactic acid) blend via natural reinforcement with enhanced biodegradability: A review. Int J Biol Macromol 2023; 251:126214. [PMID: 37572810 DOI: 10.1016/j.ijbiomac.2023.126214] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 07/06/2023] [Accepted: 08/05/2023] [Indexed: 08/14/2023]
Abstract
The growing popularity of poly(lactic acid) (PLA) can be attributed to its favorable attributes, such as excellent compostability and robust mechanical properties. Two notable limitations of PLA are its high brittleness and slow biodegradation rate. Both of blending and copolymerization strategies work well to improve PLA's toughness while sacrificing the good tensile strength and modulus properties of PLA. One of the most effective and economical approaches to address this challenge is to incorporate natural reinforcing agents into the toughened PLA system, thereby simultaneously promoting the biodegradation rate of PLA. Nevertheless, the enhancement of tensile strength and modulus is accompanied by a notable decrease in elongation. Therefore, this review provides comprehensive information on the literature works related to the tensile strength, modulus, elongation at break and impact strength of the toughened PLA and its natural fiber reinforced composites. The impact of natural reinforcing agent on the tensile fracture mechanism as well as the synergistic effect on strengthening and toughening performance will be discussed. This review also focuses on the factors boosting the biodegradability of toughened PLA blend by using natural reinforcing fiber. Review presents potential future insights into the development of biodegradable and balanced strengthened-toughened PLA based advanced materials.
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Affiliation(s)
- Dalila Shahdan
- Department of Applied Physics, Faculty of Science and Technology, Universiti Kebangsaan Malaysia (UKM), 43600 Bangi, Selangor, Malaysia
| | - Noor Afizah Rosli
- Department of Chemical Sciences, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor, Malaysia..
| | - Ruey Shan Chen
- Department of Applied Physics, Faculty of Science and Technology, Universiti Kebangsaan Malaysia (UKM), 43600 Bangi, Selangor, Malaysia.
| | - Sahrim Ahmad
- Department of Applied Physics, Faculty of Science and Technology, Universiti Kebangsaan Malaysia (UKM), 43600 Bangi, Selangor, Malaysia
| | - Sinyee Gan
- Malaysian Palm Oil Board, 6 Persiaran Institusi, Bandar Baru Bangi, 43000 Kajang, Selangor, Malaysia
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Novák J, Běhálek L, Borůvka M, Lenfeld P. The Physical Properties and Crystallization Kinetics of Biocomposite Films Based on PLLA and Spent Coffee Grounds. MATERIALS (BASEL, SWITZERLAND) 2022; 15:8912. [PMID: 36556716 PMCID: PMC9785839 DOI: 10.3390/ma15248912] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Revised: 12/11/2022] [Accepted: 12/12/2022] [Indexed: 06/17/2023]
Abstract
In the context of today's needs for environmental sustainability, it is important to develop new materials that are based on renewable resources and biodegrade at the end of their life. Bioplastics reinforced by agricultural waste have the potential to cause a revolution in many industrial applications. This paper reports the physical properties and crystallization kinetics of biocomposite films based on poly(L-lactic acid) (PLLA) and 10 wt.% of spent coffee grounds (SCG). To enhance adhesion between the PLLA matrix and SCG particles, a compatibilizing agent based on itaconic anhydride (IA)-grafted PLLA (PLLA-g-IA) was prepared by reactive extrusion using dicumyl peroxide (DCP). Furthermore, due to the intended application of the film in the packaging industry, the organic plasticizer acetyl tributyl citrate (ATBC) is used to improve processing and increase ductility. The crystallization behavior and thermal properties were observed by differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA). Crystallinity degree increased from 3,5 (neat PLLA) up to 48% (PLLA/PLLA-g-IA/ATBC/SCG) at the highest cooling rate. The physical properties were evaluated by tensile testing and dynamic mechanical analysis (DMA). The combination of the compatibilizer, SCG, and ATBC led to a synergistic effect that positively influenced the supramolecular structure, internal damping, and overall ductility of the composite films.
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Affiliation(s)
- Jan Novák
- Faculty of Mechanical Engineering, Technical University of Liberec, Studentská 1402/2, 46117 Liberec, Czech Republic
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Niu K, Song K. Synthesis and Characterization of Maleic Anhydride-Methyl Methacrylate Co-Monomer Grafted Polyethylene Wax for Hot Waxed Wood Process. MATERIALS (BASEL, SWITZERLAND) 2022; 15:6962. [PMID: 36234305 PMCID: PMC9572140 DOI: 10.3390/ma15196962] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Revised: 09/21/2022] [Accepted: 10/01/2022] [Indexed: 06/16/2023]
Abstract
The beeswax used in Chinese traditional hot waxed wood technology has several drawbacks, such as high price, scarce resources, and poor heat resistance. To expand the application of hot waxing technology in the field of wood decoration and protection, polyethylene wax was modified by a grafted maleic anhydride-methyl methacrylate co-monomer. A type of modified polyethylene wax with low cost, high melting point, high stability, and strong polarity suitable for hot waxed wood was prepared as a replacement for beeswax. The effects of the grafting conditions on the chemical properties, thermal properties, chemical structure, and crystallization properties of modified polyethylene wax were studied and compared to those of beeswax. The results show that maleic anhydride-methyl methacrylate co-monomer grafting can effectively improve the acid value of polyethylene wax. For the ratio of two monomers of 1/1, the total amount of monomer of 8 wt%, the amount of initiator of 2 wt%, the reaction temperature of 150 °C, and the acid value of modified polyethylene wax was consistent with that of beeswax, realizing the simulation of the main chemical properties of beeswax. The thermal stability and melting temperature of the modified polyethylene wax are significantly higher than those of beeswax, its crystal structure is similar to that of beeswax, and the cyclic anhydride groups and ester groups introduced by co-monomer grafting endow it with polar groups that play an important role in the wood hot waxing process.
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Lai W, Liu L. Enhanced crystallization of poly(lactic acid) bioplastics by a green and facile approach using liquid poly(ethylene glycol). POLYM ADVAN TECHNOL 2022. [DOI: 10.1002/pat.5844] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Wei‐Chi Lai
- Department of Chemical and Materials Engineering Tamkang University New Taipei City Taiwan
| | - Li‐Jie Liu
- Department of Chemical and Materials Engineering Tamkang University New Taipei City Taiwan
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11
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Garavand F, Rouhi M, Jafarzadeh S, Khodaei D, Cacciotti I, Zargar M, Razavi SH. Tuning the Physicochemical, Structural, and Antimicrobial Attributes of Whey-Based Poly (L-Lactic Acid) (PLLA) Films by Chitosan Nanoparticles. Front Nutr 2022; 9:880520. [PMID: 35571878 PMCID: PMC9097867 DOI: 10.3389/fnut.2022.880520] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Accepted: 03/29/2022] [Indexed: 11/22/2022] Open
Abstract
Recently, the research and innovation to produce raw materials from microbial processes has gained much attention due to their economic and environmental impacts. Lactic acid is a very important microbial product due to its wide application in the food, pharmaceutical, cosmetic, and chemical industries. In the current study, poly (L-lactic acid) (PLLA) was produced by the ring opening polymerization (ROP) technique of L-lactic acid recovered from whey fermentation, and was used for the production of nanocomposites films reinforced with chitosan nanoparticles (CNPs) (average diameter ca. 100–200 nm). Three different CNPs concentrations, namely 1, 3, and 5% w/w, were tested, and their influence on the physical, mechanical, thermal, antibacterial and structural attributes of PLLA film was assessed. The results showed that the addition of CNPs up to 3% caused a significant improvement in water vapor permeability, appearance, tensile strength and elongation at break. The antibacterial properties of nanocomposites followed a dose-depended pattern as a result of CNPs addition. Therefore, the best inhibitory effects on Escherichia coli and Staphylococcus aureus was made by the addition of 5% of CNPs and lower dosages slightly affected the growth of pathogens or didn't cause any inhibitory effects (in 1% of CNPs). It can be concluded that the incorporation of CNPs into the PLLA matrix allows to improve the structural, thermal, physical, mechanical and antibacterial properties of the polymer, generating promising systems for food packaging and biomedical applications.
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Affiliation(s)
- Farhad Garavand
- Department of Food Chemistry and Technology, Teagasc Moorepark Food Research Centre, County Cork, Ireland
- Bioprocess Engineering Laboratory (BPEL), Department of Food Science, Engineering and Technology, College of Agriculture and Natural Resources, University of Tehran, Karaj, Iran
- *Correspondence: Farhad Garavand
| | - Milad Rouhi
- Department of Food Science and Technology, School of Nutrition Sciences and Food Technology, Research Center for Environmental Determinants of Health (RCEDH), Health Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Shima Jafarzadeh
- School of Engineering, Edith Cowan University, Joondalup, WA, Australia
| | - Diako Khodaei
- Department of Sport, Exercise, and Nutrition, Galway-Mayo Institute of Technology (GMIT), Galway, Ireland
| | - Ilaria Cacciotti
- Department of Engineering, INSTM RU, University of Rome “Niccolò Cusano”, Rome, Italy
- Ilaria Cacciotti
| | - Masoumeh Zargar
- School of Engineering, Edith Cowan University, Joondalup, WA, Australia
| | - Seyed Hadi Razavi
- Bioprocess Engineering Laboratory (BPEL), Department of Food Science, Engineering and Technology, College of Agriculture and Natural Resources, University of Tehran, Karaj, Iran
- Seyed Hadi Razavi
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12
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Valorization of starch nanoparticles on microstructural and physical properties of
PLA
‐starch nanocomposites. J Appl Polym Sci 2022. [DOI: 10.1002/app.51757] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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13
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Seyed Khabbaz H, Garmabi H. Modification of polylactide by reactive blending with polyhydroxybutyrate oligomers formed by thermal recycling through E1cB-elimination pathway. Eur Polym J 2022. [DOI: 10.1016/j.eurpolymj.2022.111043] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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14
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Li R, Vedelaar T, Mzyk A, Morita A, Padamati SK, Schirhagl R. Following Polymer Degradation with Nanodiamond Magnetometry. ACS Sens 2022; 7:123-130. [PMID: 34982542 PMCID: PMC8809337 DOI: 10.1021/acssensors.1c01782] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Accepted: 12/14/2021] [Indexed: 01/07/2023]
Abstract
Degradable polymers are widely used in the biomedical fields due to non-toxicity and great biocompatibility and biodegradability, and it is crucial to understand how they degrade. These polymers are exposed to various biochemical media in medical practice. Hence, it is important to precisely follow the degradation of the polymer in real time. In this study, we made use of diamond magnetometry for the first time to track polymer degradation with nanoscale precision. The method is based on a fluorescent defect in nanodiamonds, which changes its optical properties based on its magnetic surrounding. Since optical signals can be read out more sensitively than magnetic signals, this method allows unprecedented sensitivity. We used a specific mode of diamond magnetometry called relaxometry or T1 measurements. These are sensitive to magnetic noise and thus can detect paramagnetic species (gadolinium in this case). Nanodiamonds were incorporated into polylactic acid (PLA) films and PLA nanoparticles in order to follow polymer degradation. However, in principle, they can be incorporated into other polymers too. We found that T1 constants decreased gradually with the erosion of the film exposed to an alkaline condition. In addition, the mobility of nanodiamonds increased, which allows us to estimate polymer viscosity. The degradation rates obtained using this approach were in good agreement with data obtained by quartz crystal microbalance, Fourier-transform infrared spectroscopy, and atomic force microscopy.
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Affiliation(s)
- Runrun Li
- Groningen
University, University Medical Center Groningen, Antonius Deusinglaan 1, Groningen 9713 AW, The Netherlands
| | - Thea Vedelaar
- Groningen
University, University Medical Center Groningen, Antonius Deusinglaan 1, Groningen 9713 AW, The Netherlands
| | - Aldona Mzyk
- Groningen
University, University Medical Center Groningen, Antonius Deusinglaan 1, Groningen 9713 AW, The Netherlands
- Institute
of Metallurgy and Materials Science, Polish Academy of Sciences, Reymonta 25, Krakow 30-059, Poland
| | - Aryan Morita
- Groningen
University, University Medical Center Groningen, Antonius Deusinglaan 1, Groningen 9713 AW, The Netherlands
- Dept.
Dental Biomedical Sciences, Faculty of Dentistry, Universitas Gadjah Mada, Jalan Denta 1, Sekip Utara, Yogyakarta 55281, Indonesia
| | - Sandeep Kumar Padamati
- Groningen
University, University Medical Center Groningen, Antonius Deusinglaan 1, Groningen 9713 AW, The Netherlands
| | - Romana Schirhagl
- Groningen
University, University Medical Center Groningen, Antonius Deusinglaan 1, Groningen 9713 AW, The Netherlands
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15
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YousefniaPasha H, Mohtasebi SS, Tabatabaeekoloor R, Taherimehr M, Javadi A, Soltani Firouz M. Preparation and characterization of the plasticized polylactic acid films produced by the solvent‐casting method for food packaging applications. J FOOD PROCESS PRES 2021. [DOI: 10.1111/jfpp.16089] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Hassan YousefniaPasha
- Department of Agricultural Machinery Engineering Faculty of Agricultural Engineering and Technology University of Tehran Karaj Iran
| | - Seyed Saeid Mohtasebi
- Department of Agricultural Machinery Engineering Faculty of Agricultural Engineering and Technology University of Tehran Karaj Iran
| | - Reza Tabatabaeekoloor
- Department of Biosystem Engineering Faculty of Agricultural Engineering Sari Agricultural Sciences and Natural Resources University Sari Iran
| | - Masoumeh Taherimehr
- Department of Chemistry Faculty of Basic Sciences Noshirvani University of Technology Babol Iran
| | - Azizeh Javadi
- Department of Polymer Engineering Faculty of Polymer and Color Engineering Amirkabir University of Technology Tehran Iran
| | - Mahmoud Soltani Firouz
- Department of Agricultural Machinery Engineering Faculty of Agricultural Engineering and Technology University of Tehran Karaj Iran
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16
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Ahmed J, Mulla MZ, Vahora A, Bher A, Auras R. Morphological, barrier and thermo-mechanical properties of high-pressure treated polylactide graphene oxide reinforced composite films. Food Packag Shelf Life 2021. [DOI: 10.1016/j.fpsl.2021.100702] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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17
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Pascual-Jose B, Badia J, Múgica A, Addiego F, Müller AJ, Ribes-Greus A. Analysis of plasticization and reprocessing effects on the segmental cooperativity of polylactide by dielectric thermal spectroscopy. POLYMER 2021. [DOI: 10.1016/j.polymer.2021.123701] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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18
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Bäckström E, Odelius K, Hakkarainen M. Ultrafast microwave assisted recycling of PET to a family of functional precursors and materials. Eur Polym J 2021. [DOI: 10.1016/j.eurpolymj.2021.110441] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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19
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Barletta M, Pizzi E. Optimizing crystallinity of engineered poly(lactic acid)/poly(butylene succinate) blends: The role of single and multiple nucleating agents. J Appl Polym Sci 2021. [DOI: 10.1002/app.50236] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
| | - Elisa Pizzi
- Dipartimento di Ingegneria Università degli Studi Roma Tre Rome Italy
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20
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Jia Yam N, Rusli A, Abdul Hamid ZA, Abdullah MK, Ku Marsilla KI. Halochromic poly (lactic acid) film for acid base sensor. J Appl Polym Sci 2021. [DOI: 10.1002/app.50093] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Ng Jia Yam
- School of Materials and Mineral Resources Engineering Engineering Campus, Universiti Sains Malaysia Nibong Tebal Malaysia
| | - Arjulizan Rusli
- School of Materials and Mineral Resources Engineering Engineering Campus, Universiti Sains Malaysia Nibong Tebal Malaysia
| | - Zuratul Ain Abdul Hamid
- School of Materials and Mineral Resources Engineering Engineering Campus, Universiti Sains Malaysia Nibong Tebal Malaysia
| | - Muhammad Khalil Abdullah
- School of Materials and Mineral Resources Engineering Engineering Campus, Universiti Sains Malaysia Nibong Tebal Malaysia
| | - Ku Ishak Ku Marsilla
- School of Materials and Mineral Resources Engineering Engineering Campus, Universiti Sains Malaysia Nibong Tebal Malaysia
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21
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Lv T, Li J, Huang S, Wen H, Li H, Chen J, Jiang S. Synergistic effects of chain dynamics and enantiomeric interaction on the crystallization in PDLA/PLLA mixtures. POLYMER 2021. [DOI: 10.1016/j.polymer.2021.123648] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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22
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Gálvez J, Correa Aguirre JP, Hidalgo Salazar MA, Vera Mondragón B, Wagner E, Caicedo C. Effect of Extrusion Screw Speed and Plasticizer Proportions on the Rheological, Thermal, Mechanical, Morphological and Superficial Properties of PLA. Polymers (Basel) 2020; 12:E2111. [PMID: 32948042 PMCID: PMC7570249 DOI: 10.3390/polym12092111] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Revised: 09/08/2020] [Accepted: 09/08/2020] [Indexed: 11/17/2022] Open
Abstract
One of the critical processing parameters-the speed of the extrusion process for plasticized poly (lactic acid) (PLA)-was investigated in the presence of acetyl tributyl citrate (ATBC) as plasticizer. The mixtures were obtained by varying the content of plasticizer (ATBC, 10-30% by weight), using a twin screw extruder as a processing medium for which a temperature profile with peak was established that ended at 160 °C, two mixing zones and different screw rotation speeds (60 and 150 rpm). To evaluate the thermo-mechanical properties of the blend and hydrophilicity, the miscibility of the plasticizing and PLA matrix, Fourier transform infrared spectroscopy (FT-IR), thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC), oscillatory rheological analysis, Dynamic Mechanical Analysis (DMA), mechanical analysis, as well as the contact angle were tested. The results derived from the oscillatory rheological analysis had a viscous behavior in the PLA samples with the presence of ATBC; the lower process speed promotes the transitions from viscous to elastic as well as higher values of loss modulus, storage modulus and complex viscosity, which means less loss of molecular weight and lower residual energy in the transition from the viscous state to the elastic state. The mechanical and thermal performance was optimized considering a greater capacity in the energy absorption and integration of the components.
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Affiliation(s)
- Jaime Gálvez
- Grupo de Investigación en Desarrollo de Materiales y Productos—GIDEMP, Centro Nacional de Asistencia Técnica a la Industria—ASTIN, SENA, Calle 52 No 2bis 15, Cali 760035, Colombia; (J.G.); (B.V.M.); (E.W.)
| | - Juan P. Correa Aguirre
- Research Group for Manufacturing Technologies (GITEM), Universidad Autónoma de Occidente, Cali 760035, Colombia; (J.P.C.A.); (M.A.H.S.)
| | - Miguel A. Hidalgo Salazar
- Research Group for Manufacturing Technologies (GITEM), Universidad Autónoma de Occidente, Cali 760035, Colombia; (J.P.C.A.); (M.A.H.S.)
| | - Bairo Vera Mondragón
- Grupo de Investigación en Desarrollo de Materiales y Productos—GIDEMP, Centro Nacional de Asistencia Técnica a la Industria—ASTIN, SENA, Calle 52 No 2bis 15, Cali 760035, Colombia; (J.G.); (B.V.M.); (E.W.)
| | - Elizabeth Wagner
- Grupo de Investigación en Desarrollo de Materiales y Productos—GIDEMP, Centro Nacional de Asistencia Técnica a la Industria—ASTIN, SENA, Calle 52 No 2bis 15, Cali 760035, Colombia; (J.G.); (B.V.M.); (E.W.)
| | - Carolina Caicedo
- Grupo de Investigación en Química y Biotecnología (QUIBIO), Facultad de Ciencias Básicas, Universidad Santiago de Cali, Calle 5 No. 62-00, Cali 760035, Colombia
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Heat Properties of Polylactic Acid Biocomposites after Addition of Plasticizers and Oil Palm Frond Microfiber. JURNAL KIMIA SAINS DAN APLIKASI 2020. [DOI: 10.14710/jksa.23.8.295-304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Polylactic acid (PLA) is a biopolymer that can replace thermoplastic polymers such as polypropylene (PP) in various applications due to strength, young modulus, biocompatibility, biodegradability, good clarity, oil resistance, and oxygen barrier ability. However, PLA has some drawbacks, including brittle, high glass transition temperature (Tg), and low degradation and crystallization rates. Therefore, modification is needed with the addition of nucleating agents and plasticizers to overcome these limitations of PLA. This research aims to study the effect of plasticizers and microfibril cellulose of oil palm frond (OPF) on thermal stability and to review the crystallization kinetics of PLA biocomposites. Polyethylene glycol and triacetin were used as plasticizers. Thermal analysis was performed using Thermal Gravimetry analysis (TGA) and Differential Scanning Calorimetry (DSC). The crystallization kinetics study was analyzed using a modified Avrami model under non-isothermal conditions. PLAP4000 has better thermal stability than PLAP200 and PLAG with Tonset and Tmax values reaching 349.17°C and 374.68°C, respectively, which are close to pure PLA. All types of plasticizers influenced decreasing the Tg value in the range of 27–42%, whereas OPF microfiber addition contributes to a Tg reduction of 37-55 %. Crystallization kinetic study was informed for heterogeneous and simultaneous nucleation mechanisms with an n value range of about 2-3 for PLAP4000 and PLAOP4000. The crystallization rate was multiplied 4-9-fold for PLAOP200 and 2-3-fold for PLAOP4000.
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24
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Choi WJ, Hwang KS, Kwon HJ, Lee C, Kim CH, Kim TH, Heo SW, Kim JH, Lee JY. Rapid development of dual porous poly(lactic acid) foam using fused deposition modeling (FDM) 3D printing for medical scaffold application. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 110:110693. [PMID: 32204007 DOI: 10.1016/j.msec.2020.110693] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Revised: 12/23/2019] [Accepted: 01/25/2020] [Indexed: 01/08/2023]
Abstract
The poor melt property and brittleness of poly(lactic acid) (PLA) cause difficulties in extrusion foaming and decrease product performance in industrial and research fields. In this paper, the rheological properties of PLA resin were improved using an epoxy chain extension reaction, which led to the improvement of pore properties such as morphology and foamability. Reinforced PLA was extruded in a porous filament, and a scaffold was fabricated with design freedom, one-step processing, and dual porosity by extrusion foaming and 3D printing. In addition, in vitro cell culture tests were performed to verify the cell biology assessment and confirm the potential of the scaffold for application as medical scaffolds.
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Affiliation(s)
- Won Jun Choi
- Korea Institute of Industrial Technology (KITECH), 89, Yangdaegiro-gil, Ipjang-myeon, Seobuk-gu, Cheonan-si, Chungcheongnam-do 31056, Republic of Korea; Department of Chemical and Biomolecular Engineering, Yonsei University, 50, Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea
| | - Ki Seob Hwang
- Korea Institute of Industrial Technology (KITECH), 89, Yangdaegiro-gil, Ipjang-myeon, Seobuk-gu, Cheonan-si, Chungcheongnam-do 31056, Republic of Korea
| | - Hyuk Jun Kwon
- Korea Institute of Industrial Technology (KITECH), 89, Yangdaegiro-gil, Ipjang-myeon, Seobuk-gu, Cheonan-si, Chungcheongnam-do 31056, Republic of Korea; Department of Chemical and Biomolecular Engineering, Yonsei University, 50, Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea
| | - Chanmin Lee
- Korea Institute of Industrial Technology (KITECH), 89, Yangdaegiro-gil, Ipjang-myeon, Seobuk-gu, Cheonan-si, Chungcheongnam-do 31056, Republic of Korea
| | - Chae Hwa Kim
- Korea Institute of Industrial Technology (KITECH), 143, Hanggaul-ro, Sangnok-gu, Ansan-si, Gyeonggi-do 15588, Republic of Korea
| | - Tae Hee Kim
- Korea Institute of Industrial Technology (KITECH), 143, Hanggaul-ro, Sangnok-gu, Ansan-si, Gyeonggi-do 15588, Republic of Korea
| | - Seung Won Heo
- Korea Institute of Industrial Technology (KITECH), 143, Hanggaul-ro, Sangnok-gu, Ansan-si, Gyeonggi-do 15588, Republic of Korea; Department of Materials Science and Chemical Engineering, Hanyang University ERICA campus, 55, Hanyangdaehak-ro, Sangnok-gu, Ansan-si, Gyeonggi-do, Republic of Korea
| | - Jung-Hyun Kim
- Department of Chemical and Biomolecular Engineering, Yonsei University, 50, Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea
| | - Jun-Young Lee
- Korea Institute of Industrial Technology (KITECH), 89, Yangdaegiro-gil, Ipjang-myeon, Seobuk-gu, Cheonan-si, Chungcheongnam-do 31056, Republic of Korea.
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25
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Behera K, Chang YH, Yadav M, Chiu FC. Enhanced thermal stability, toughness, and electrical conductivity of carbon nanotube-reinforced biodegradable poly(lactic acid)/poly(ethylene oxide) blend-based nanocomposites. POLYMER 2020. [DOI: 10.1016/j.polymer.2019.122002] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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26
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Samthong C, Kunanusont N, Deetuam C, Wongkhan T, Supannasud T, Somwangthanaroj A. Effect of acrylonitrile content of acrylonitrile butadiene rubber on mechanical and thermal properties of dynamically vulcanized poly(lactic acid) blends. POLYM INT 2019. [DOI: 10.1002/pi.5912] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Chavakorn Samthong
- Department of Chemical Engineering, Faculty of EngineeringChulalongkorn University Bangkok Thailand
| | - Nappaphan Kunanusont
- Department of Chemical Engineering, Faculty of EngineeringChulalongkorn University Bangkok Thailand
| | - Chutimar Deetuam
- Department of Chemical Engineering, Faculty of EngineeringChulalongkorn University Bangkok Thailand
| | - Tanchanok Wongkhan
- Department of Chemical Engineering, Faculty of EngineeringChulalongkorn University Bangkok Thailand
| | - Thanapat Supannasud
- Department of Chemical Engineering, Faculty of EngineeringChulalongkorn University Bangkok Thailand
| | - Anongnat Somwangthanaroj
- Department of Chemical Engineering, Faculty of EngineeringChulalongkorn University Bangkok Thailand
- Special Task Force of Activating Research (STAR) in Novel Technology for Food Packaging and Control of Shelf LifeChulalongkorn University Bangkok Thailand
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27
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Brüster B, Adjoua YO, Dieden R, Grysan P, Federico CE, Berthé V, Addiego F. Plasticization of Polylactide with Myrcene and Limonene as Bio-Based Plasticizers: Conventional vs. Reactive Extrusion. Polymers (Basel) 2019; 11:polym11081363. [PMID: 31426605 PMCID: PMC6723983 DOI: 10.3390/polym11081363] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2019] [Revised: 08/14/2019] [Accepted: 08/15/2019] [Indexed: 11/24/2022] Open
Abstract
Polylactide (PLA) was blended by conventional and reactive extrusion with limonene (LM) or myrcene (My) as bio-based plasticizers. As-processed blends were carefully analyzed by a multiscale and multidisciplinary approach to tentatively determine their chemical structure, microstructure, thermal properties, tensile and impact behaviors, and hydrothermal stability. The main results indicated that LM and My were efficient plasticizers for PLA, since compared to neat PLA, the glass transition temperature was reduced, the ultimate tensile strain was increased, and the impact strength was increased, independently of the type of extrusion. The addition of a free radical initiator during the extrusion of PLA/LM was beneficial for the mechanical properties. Indeed, the probable formation of local branched/crosslinked regions in the PLA matrix enhanced the matrix crystallinity, the tensile yield stress, and the tensile ultimate stress compared to the non-reactive blend PLA/LM, while the other properties were retained. For PLA/My blends, reactive extrusion was detrimental for the mechanical properties since My polymerization was accelerated resulting in a drop of the tensile ultimate strain and impact strength, and an increase of the glass transition temperature. Indeed, large inclusions of polymerized My were formed, decreasing the available content of My for the plasticization and enhancing cavitation from inclusion-matrix debonding.
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Affiliation(s)
- Berit Brüster
- Luxembourg Institute of Science and Technology (LIST), Department Materials Research and Technology (MRT), ZAE Robert Steichen, 5 Rue Bommel, L-4940 Hautcharage, Luxembourg
| | - Yann-Olivier Adjoua
- Luxembourg Institute of Science and Technology (LIST), Department Materials Research and Technology (MRT), ZAE Robert Steichen, 5 Rue Bommel, L-4940 Hautcharage, Luxembourg
| | - Reiner Dieden
- Luxembourg Institute of Science and Technology (LIST), Department Materials Research and Technology (MRT), ZAE Robert Steichen, 5 Rue Bommel, L-4940 Hautcharage, Luxembourg
| | - Patrick Grysan
- Luxembourg Institute of Science and Technology (LIST), Department Materials Research and Technology (MRT), ZAE Robert Steichen, 5 Rue Bommel, L-4940 Hautcharage, Luxembourg
| | - Carlos Eloy Federico
- Luxembourg Institute of Science and Technology (LIST), Department Materials Research and Technology (MRT), ZAE Robert Steichen, 5 Rue Bommel, L-4940 Hautcharage, Luxembourg
| | - Vincent Berthé
- Luxembourg Institute of Science and Technology (LIST), Department Materials Research and Technology (MRT), ZAE Robert Steichen, 5 Rue Bommel, L-4940 Hautcharage, Luxembourg
| | - Frédéric Addiego
- Luxembourg Institute of Science and Technology (LIST), Department Materials Research and Technology (MRT), ZAE Robert Steichen, 5 Rue Bommel, L-4940 Hautcharage, Luxembourg.
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28
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He H, Pang Y, Duan Z, Luo N, Wang Z. The Strengthening and Toughening of Biodegradable Poly (Lactic Acid) Using the SiO 2-PBA Core-Shell Nanoparticle. MATERIALS 2019; 12:ma12162510. [PMID: 31394785 PMCID: PMC6720591 DOI: 10.3390/ma12162510] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/10/2019] [Revised: 08/02/2019] [Accepted: 08/05/2019] [Indexed: 11/16/2022]
Abstract
The balance of strengthening and toughening of poly (lactic acid) (PLA) has been an intractable challenge of PLA nanocomposite development for many years. In this paper, core-shell nanoparticles consisting of a silica rigid core and poly (butyl acrylate) (PBA) flexible shell were incorporated to achieve the simultaneous enhancement of the strength and toughness of PLA. The effect of core-shell nanoparticles on the tensile, flexural and Charpy impact properties of PLA nanocomposite were experimentally investigated. Scanning electron microscopy (SEM) and small-angle X-ray scattering (SAXS) measurements were performed to investigate the toughening mechanisms of nanocomposites. The experimental results showed that the addition of core-shell nanoparticles can improve the stiffness and strength of PLA. Meanwhile, its elongation at break, tensile toughness and impact resistance were enhanced simultaneously. These observations can be attributed to the cavitation of the flexible shell in core-shell nanoparticles and the resultant shear yielding of the matrix. In addition, a three-dimensional finite element model was also proposed to illustrate the damage processes of core-shell nanoparticle-reinforced polymer composites. It was found that, compared with the experimental performance, the proposed micromechanical model is favorable to illustrate the mechanical behavior of nanocomposites.
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Affiliation(s)
- Hailing He
- College of Aerospace and Civil Engineering, Harbin Engineering University, Harbin 150001, China
| | - Yuezhao Pang
- College of Aerospace and Civil Engineering, Harbin Engineering University, Harbin 150001, China
| | - Zhiwei Duan
- Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang 621900, Sichuan, China
| | - Na Luo
- College of Aerospace and Civil Engineering, Harbin Engineering University, Harbin 150001, China
| | - Zhenqing Wang
- College of Aerospace and Civil Engineering, Harbin Engineering University, Harbin 150001, China.
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29
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Jariyasakoolroj P, Rojanaton N, Jarupan L. Crystallization behavior of plasticized poly(lactide) film by poly(l-lactic acid)-poly(ethylene glycol)-poly(l-lactic acid) triblock copolymer. Polym Bull (Berl) 2019. [DOI: 10.1007/s00289-019-02862-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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30
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Lee JC, Choi MC, Choi DH, Ha CS. Toughness enhancement of poly(lactic acid) through hybridisation with epoxide-functionalised silane via reactive extrusion. Polym Degrad Stab 2019. [DOI: 10.1016/j.polymdegradstab.2018.12.024] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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31
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Affiliation(s)
- Nur Fazreen Alias
- School of Materials and Mineral Resources Engineering, Universiti Sains Malaysia, Nibong Tebal, Penang, Malaysia
| | - Hanafi Ismail
- School of Materials and Mineral Resources Engineering, Universiti Sains Malaysia, Nibong Tebal, Penang, Malaysia
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32
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Kasmi S, Gallos A, Beaugrand J, Paës G, Allais F. Ferulic acid derivatives used as biobased powders for a convenient plasticization of polylactic acid in continuous hot-melt process. Eur Polym J 2019. [DOI: 10.1016/j.eurpolymj.2018.11.036] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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33
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Poly (lactic acid) blends: Processing, properties and applications. Int J Biol Macromol 2018; 125:307-360. [PMID: 30528997 DOI: 10.1016/j.ijbiomac.2018.12.002] [Citation(s) in RCA: 285] [Impact Index Per Article: 47.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2018] [Revised: 11/29/2018] [Accepted: 12/01/2018] [Indexed: 11/21/2022]
Abstract
Poly (lactic acid) or polylactide (PLA) is a commercial biobased, biodegradable, biocompatible, compostable and non-toxic polymer that has competitive material and processing costs and desirable mechanical properties. Thereby, it can be considered favorably for biomedical applications and as the most promising substitute for petroleum-based polymers in a wide range of commodity and engineering applications. However, PLA has some significant shortcomings such as low melt strength, slow crystallization rate, poor processability, high brittleness, low toughness, and low service temperature, which limit its applications. To overcome these limitations, blending PLA with other polymers is an inexpensive approach that could also tailor the final properties of PLA-based products. During the last two decades, researchers investigated the synthesis, processing, properties, and development of various PLA-based blend systems including miscible blends of poly l-lactide (PLLA) and poly d-lactide (PDLA), which generate stereocomplex crystals, binary immiscible/miscible blends of PLA with other thermoplastics, multifunctional ternary blends using a third polymer or fillers such as nanoparticles, as well as PLA-based blend foam systems. This article reviews all these investigations and compares the syntheses/processing-morphology-properties interrelationships in PLA-based blends developed so far for various applications.
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34
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da Silva JA, Dalmolin C, Pachekoski WM, Becker D. The combined effect of plasticizers and graphene on properties of poly(lactic acid). J Appl Polym Sci 2018. [DOI: 10.1002/app.46745] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Josiani Aparecida da Silva
- Centro de Ciências Tecnológicas; Universidade do Estado de Santa Catariana, UDESC; Joinville Santa Catarina Brazil
| | - Carla Dalmolin
- Centro de Ciências Tecnológicas; Universidade do Estado de Santa Catariana, UDESC; Joinville Santa Catarina Brazil
| | - Wagner M. Pachekoski
- Departamento de Engenharias da Mobilidade; Universidade Federal de Santa Catarina; Joinville Santa Catarina Brazil
| | - Daniela Becker
- Centro de Ciências Tecnológicas; Universidade do Estado de Santa Catariana, UDESC; Joinville Santa Catarina Brazil
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Determination of non-volatile components of a biodegradable food packaging material based on polyester and polylactic acid (PLA) and its migration to food simulants. J Chromatogr A 2018; 1583:1-8. [PMID: 30477716 DOI: 10.1016/j.chroma.2018.10.055] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Revised: 06/04/2018] [Accepted: 10/31/2018] [Indexed: 11/19/2022]
Abstract
Bioplastic materials are increasingly used due to its benefits for the environment preservation. Among them, food packaging materials based on polylactic acid (PLA) are among the most employed. In this work, a sample treatment methodology based on dissolution/precipitation has been optimized, selecting finally dichloromethane/ethanol as solvent/antisolvent system. The extracts obtained were analysed by UPLC-MS(QTOF), that allowed the identification of the main PLA non-volatile components. The recovery results were between 100.9 to 114.0%. The methodology was applied to the analysis of pellets and films of a PLA-polyester blend sample. A total of 37 different compounds were detected, where the four compounds with the highest intensity in pellet samples were cyclic oligomers coming from the polyester part of the blend and composed by adipic acid (AA), phthalic acid (PA) and butanediol (BD). Migration experiments to 3 food simulants were also performed: ethanol 95% (v/v), ethanol 10% (v/v) and acetic acid 3% (w/v). The results showed that in addition to those compounds previously detected in the film, new compounds coming from the reaction of PLA components with food simulants were present in migration solutions.
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36
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Toughening poly(lactic acid) with poly(ethylene oxide)-poly(propylene oxide)-poly(ethylene oxide) triblock copolymers. POLYMER 2018. [DOI: 10.1016/j.polymer.2018.09.027] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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37
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Srisuwan Y, Baimark Y, Suttiruengwong S. Toughening of Poly(L-lactide) with Blends of Poly( ε-caprolactone- co-L-lactide) in the Presence of Chain Extender. Int J Biomater 2018; 2018:1294397. [PMID: 30275834 PMCID: PMC6157148 DOI: 10.1155/2018/1294397] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Revised: 08/08/2018] [Accepted: 08/16/2018] [Indexed: 12/13/2022] Open
Abstract
A poly(ε-caprolactone-co-L-lactide) copolyester was synthesized and employed to toughen poly(L-lactide) (PLLA) by reactive melt blending in the presence of an epoxy-based chain extender. The effects of chain extension reaction and copolyester content on properties of PLLA-based blends were studied. The chain extension reaction reduced crystallinity and melt flow index of PLLA/copolyester blends. Meanwhile the copolyester blending improved the crystallinities of the chain-extended PLLA up to 20 wt% copolyester. The phase compatibility between PLLA matrix and dispersed copolyester phases was enhanced by the chain extension reaction. The impact strength of chain-extended PLLA increased with the contents of copolyester and chain extender.
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Affiliation(s)
- Yaowalak Srisuwan
- Biodegradable Polymers Research Unit, Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Mahasarakham University, Mahasarakham 44150, Thailand
| | - Yodthong Baimark
- Biodegradable Polymers Research Unit, Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Mahasarakham University, Mahasarakham 44150, Thailand
| | - Supakij Suttiruengwong
- Department of Materials Science and Engineering, Faculty of Engineering and Industrial Technology, Silpakorn University, Sanamchandra Palace Campus, Nakhon Pathom 73000, Thailand
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38
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Norazlina H, Hadi AA, Qurni AU, Amri M, Mashelmie S, Kamal Y. Effects of multi-walled carbon nanotubes (MWCNTs) on the degradation behavior of plasticized PLA nanocomposites. Polym Bull (Berl) 2018. [DOI: 10.1007/s00289-018-2454-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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39
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Mokhtar M, Gosselin PM, François-Xavier L, Hildgen P. Tablet formulation of Famotidine-loaded P-gp inhibiting nanoparticles using PLA-g-PEG grafted polymer. Pharm Dev Technol 2018; 24:211-221. [PMID: 29564944 DOI: 10.1080/10837450.2018.1455695] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Our work aimed at evaluating the use of permeability glycoprotein (P-gp) inhibiting nanoparticles (NPs) as a part of a suitable oral solid dosage to improve bioavailability. Famotidine (Pepcid®), a stomach acid production inhibitor, was used as a drug model to test our hypothesis. Famotidine-loaded NPs were prepared by solvent emulsion evaporation using PEG grafted on a polylactide acid (PLA) polymer backbone (PLA-g-PEG), with a 5% molar ratio of PEG versus lactic acid monomer and PEG of either 750 or 2000 Da molecular weight. Tablet formulation was composed of 40% Famotidine-loaded NPs, 52.5% microcrystalline cellulose as filler, 7% pre-gelatinized starch as binder/disintegrant, and 0.5% magnesium stearate as lubricant. Tablets containing 1.6 mg of Famotidine were prepared at an average weight of 500 mg, thickness of 6.2-6.5 mm, hardness of 5-8 kp, and disintegration time of <1 min. Our results suggest that Famotidine-loaded NPs using grafted PEG-g-PLA polymers can be formulated as an oral solid dosage form while effectively inhibiting P-gp mediated Famotidine efflux, irrespective of PEG molecular weights. This could therefore represent an attractive formulation alternative to enhance oral permeability and bioavailability of drugs that are P-gp substrates.
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Affiliation(s)
- Mohamed Mokhtar
- a Faculté de Pharmacie , Université de Montréal , Montreal , Canada.,b Faculty of Health Science , Sirte University , Sirte , Libya
| | | | | | - Patrice Hildgen
- a Faculté de Pharmacie , Université de Montréal , Montreal , Canada
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40
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41
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Rostami A, Vahdati M, Alimoradi Y, Karimi M, Nazockdast H. Rheology provides insight into flow induced nano-structural breakdown and its recovery effect on crystallization of single and hybrid carbon nanofiller filled poly(lactic acid). POLYMER 2018. [DOI: 10.1016/j.polymer.2017.11.062] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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42
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Jeong JH, Choi MC, Nagappan S, Lee WK, Ha CS. Preparation and properties of poly(lactic acid)/lipophilized graphene oxide nanohybrids. POLYM INT 2017. [DOI: 10.1002/pi.5478] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Jae-Hoon Jeong
- Department of Polymer Science and Engineering; Pusan National University; Busan Republic of Korea
| | - Myeon-Cheon Choi
- Department of Polymer Science and Engineering; Pusan National University; Busan Republic of Korea
| | - Saravanan Nagappan
- Department of Polymer Science and Engineering; Pusan National University; Busan Republic of Korea
| | - Won-Ki Lee
- Department of Polymer Engineering; Pukyong National University; Busan Republic of Korea
| | - Chang-Sik Ha
- Department of Polymer Science and Engineering; Pusan National University; Busan Republic of Korea
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43
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Muller J, González-Martínez C, Chiralt A. Poly(lactic) acid (PLA) and starch bilayer films, containing cinnamaldehyde, obtained by compression moulding. Eur Polym J 2017. [DOI: 10.1016/j.eurpolymj.2017.07.019] [Citation(s) in RCA: 92] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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44
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Saravana S, Girija B, Kandaswamy R. Fabrication and characterization of dental mirror product using polylactic acid biocomposites. INT J POLYM MATER PO 2017. [DOI: 10.1080/00914037.2016.1255613] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Savitha Saravana
- Department of Rubber and Plastics Technology, Madras Institute of Technology Campus, Anna University, Chennai, India
| | - Bheemaneti Girija
- Department of Rubber and Plastics Technology, Madras Institute of Technology Campus, Anna University, Chennai, India
| | - Ravichandran Kandaswamy
- Department of Rubber and Plastics Technology, Madras Institute of Technology Campus, Anna University, Chennai, India
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45
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Muller J, González-Martínez C, Chiralt A. Combination of Poly(lactic) Acid and Starch for Biodegradable Food Packaging. MATERIALS 2017; 10:ma10080952. [PMID: 28809808 PMCID: PMC5578318 DOI: 10.3390/ma10080952] [Citation(s) in RCA: 147] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/28/2017] [Revised: 08/10/2017] [Accepted: 08/11/2017] [Indexed: 01/24/2023]
Abstract
The massive use of synthetic plastics, in particular in the food packaging area, has a great environmental impact, and alternative more ecologic materials are being required. Poly(lactic) acid (PLA) and starch have been extensively studied as potential replacements for non-degradable petrochemical polymers on the basis of their availability, adequate food contact properties and competitive cost. Nevertheless, both polymers exhibit some drawbacks for packaging uses and need to be adapted to the food packaging requirements. Starch, in particular, is very water sensitive and its film properties are heavily dependent on the moisture content, exhibiting relatively low mechanical resistance. PLA films are very brittle and offer low resistance to oxygen permeation. Their combination as blend or multilayer films could provide properties that are more adequate for packaging purposes on the basis of their complementary characteristics. The main characteristics of PLA and starch in terms of not only the barrier and mechanical properties of their films but also of their combinations, by using blending or multilayer strategies, have been analyzed, identifying components or processes that favor the polymer compatibility and the good performance of the combined materials. The properties of some blends/combinations have been discussed in comparison with those of pure polymer films.
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Affiliation(s)
- Justine Muller
- Universidad Politécnica de Valencia, IIAD, Camino de Vera, s/n, 46022 València, Spain.
| | | | - Amparo Chiralt
- Universidad Politécnica de Valencia, IIAD, Camino de Vera, s/n, 46022 València, Spain.
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46
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Lv T, Zhou C, Li J, Huang S, Wen H, Meng Y, Jiang S. New insight into the mechanism of enhanced crystallization of PLA in PLLA/PDLA mixture. J Appl Polym Sci 2017. [DOI: 10.1002/app.45663] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Tongxin Lv
- School of Materials Science and Engineering; Tianjin University; Tianjin 300072 People's Republic of China
| | - Chengbo Zhou
- School of Materials Science and Engineering; Tianjin University; Tianjin 300072 People's Republic of China
| | - Jingqing Li
- School of Materials Science and Engineering; Tianjin University; Tianjin 300072 People's Republic of China
| | - Shaoyong Huang
- Key Laboratory of Polymer Eco-materials; Changchun Institute of Applied Chemistry, Chinese Academy of Sciences; Changchun 130022 People's Republic of China
| | - Huiying Wen
- College of Engineering and Technology; Northeast Forestry University; Harbin 150040 People's Republic of China
| | - Yanfeng Meng
- School of Chemistry and Materials Science; Ludong University; Yantai 264025 People's Republic of China
| | - Shichun Jiang
- School of Materials Science and Engineering; Tianjin University; Tianjin 300072 People's Republic of China
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47
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Fang H, Xie Q, Wei H, Xu P, Ding Y. Physical gelation and macromolecular mobility of sustainable polylactide during isothermal crystallization. ACTA ACUST UNITED AC 2017. [DOI: 10.1002/polb.24381] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Huagao Fang
- Department of Polymer Science and Engineering; School of Chemistry and Chemical Engineering, Provincial Key Laboratory of Advanced Functional Materials and Devices, Hefei University of Technology; Hefei Anhui Province 230009 People's Republic of China
| | - Qizheng Xie
- Department of Polymer Science and Engineering; School of Chemistry and Chemical Engineering, Provincial Key Laboratory of Advanced Functional Materials and Devices, Hefei University of Technology; Hefei Anhui Province 230009 People's Republic of China
| | - Haibing Wei
- Department of Polymer Science and Engineering; School of Chemistry and Chemical Engineering, Provincial Key Laboratory of Advanced Functional Materials and Devices, Hefei University of Technology; Hefei Anhui Province 230009 People's Republic of China
| | - Pei Xu
- Department of Polymer Science and Engineering; School of Chemistry and Chemical Engineering, Provincial Key Laboratory of Advanced Functional Materials and Devices, Hefei University of Technology; Hefei Anhui Province 230009 People's Republic of China
| | - Yunsheng Ding
- Department of Polymer Science and Engineering; School of Chemistry and Chemical Engineering, Provincial Key Laboratory of Advanced Functional Materials and Devices, Hefei University of Technology; Hefei Anhui Province 230009 People's Republic of China
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48
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Mokhtar M, Gosselin P, Lacasse F, Hildgen P. Design of PEG-grafted-PLA nanoparticles as oral permeability enhancer for P-gp substrate drug model Famotidine. J Microencapsul 2017; 34:91-103. [PMID: 28151040 DOI: 10.1080/02652048.2017.1290155] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Bioavailability of oral drugs can be limited by an intestinal excretion process mediated by P-glycoprotein (P-gp). Polyethylene glycol (PEG) is a known P-gp inhibitor. Dispersion of Famotidine (a P-gp substrate) within PEGylated nanoparticles (NPs) was used to improve its oral bioavailability. In this work, we evaluated the potential impact of NPs prepared from a grafted copolymer of polylactic acid and PEG on P-gp function by studying in vitro permeability of Famotidine across Caco-2 cells. Copolymers of PEG grafted on polylactic acid (PLA) backbone (PLA-g-PEG) were synthesised with 1 mol% and 5 mol% PEG vs. lactic acid monomer using PEG 750 and 2000 Da. The polymers were used to prepare Famotidine-loaded NPs and tested in vitro on Caco-2 cells. Significant decrease in basolateral-to-apical transport of Famotidine was observed when Famotidine was encapsulated in NPs prepared from PLA-g-PEG5%. NPs prepared from PLA-g-PEG5% are promising to improve oral bioavailability of P-gp substrates.
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Affiliation(s)
- Mohamed Mokhtar
- a Faculty of Pharmacy , University of Montreal , Montreal , Quebec , Canada
| | - Patrick Gosselin
- b Corealis Pharma , Pharmaceutical R&D , Laval , Quebec , Canada
| | - François Lacasse
- a Faculty of Pharmacy , University of Montreal , Montreal , Quebec , Canada
| | - Patrice Hildgen
- c Faculty of Pharmacy , University of Montreal, Lab of Nanotech Pharmacy , Montreal , Quebec , Canada
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49
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Khamsarn T, Supthanyakul R, Matsumoto M, Chirachanchai S. PLA with high elongation induced by multi-branched poly(ethylene imine) (mPEI) containing poly(l-lactic acid) (PLLA) terminals. POLYMER 2017. [DOI: 10.1016/j.polymer.2016.08.038] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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50
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Li R, Wu L, Li BG. Poly(l-lactide) Materials with Balanced Mechanical Properties Prepared by Blending with PEG-mb-PPA Multiblock Copolymers. Ind Eng Chem Res 2017. [DOI: 10.1021/acs.iecr.6b05046] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ruoyun Li
- State Key Laboratory of Chemical Engineering at ZJU, College of Chemical & Biological Engineering, Zhejiang University, Hangzhou 310027, China
| | - Linbo Wu
- State Key Laboratory of Chemical Engineering at ZJU, College of Chemical & Biological Engineering, Zhejiang University, Hangzhou 310027, China
| | - Bo-Geng Li
- State Key Laboratory of Chemical Engineering at ZJU, College of Chemical & Biological Engineering, Zhejiang University, Hangzhou 310027, China
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