Polymers from Renewable Resources最新文献

Interfacial compatibilization of fully biodegradable polylactic acid/polybutylene adipate terephthalate blends for improved mechanical and physical performance 完全可生物降解的聚乳酸/聚己二酸丁二酯共混物的界面增容，以改善机械和物理性能

Polymers from Renewable Resources Pub Date : 2024-09-11 DOI: 10.1177/20412479241283842

Xueyan Bian, Gang Xia, John H. Xin, Shouxiang Jiang

{"title":"Interfacial compatibilization of fully biodegradable polylactic acid/polybutylene adipate terephthalate blends for improved mechanical and physical performance","authors":"Xueyan Bian, Gang Xia, John H. Xin, Shouxiang Jiang","doi":"10.1177/20412479241283842","DOIUrl":"https://doi.org/10.1177/20412479241283842","url":null,"abstract":"Environmental problems, such as plastic pollution and global warming, are motivating researchers worldwide to seek sustainable biodegradable polymers that would replace the nonbiodegradable ones. Polylactic acid (PLA) has emerged as one of the most promising alternatives due to its superior mechanical and thermal qualities compared to other types of biopolymers. However, PLA has some inherent deficiencies such as its brittleness and rigidity, which limit its further use. This study investigates the toughening effect of different amounts of polybutylene adipate terephthalate (PBAT) on PLA, and the compatibilization effect of ADR, a chain extender, on the PLA/PBAT blends. The results indicate that PBAT can significantly enhance the flexibility and toughness of PLA. PLA and PBAT can react with ADR to form PLA-g-PBAT copolymers thereby increasing the compatibility of these two polymers. The tensile strength, elongation at break and impact strength of the PLA/PBAT/ADR blends are all increased due to the increased compatibility. The chain extension reaction can promote the formation of a better crystalline structure in the PLA/PBAT blends, which leads to the increase of the Tm of PLA. Besides, the hydrophilicity of PLA can be adjusted by blending with PBAT, and the hydrophilicity of the blends with blend ratios of 75:25, 50:50 and 25:75 can also be enhanced after the addition of ADR.","PeriodicalId":20353,"journal":{"name":"Polymers from Renewable Resources","volume":"15 4","pages":"397-411"},"PeriodicalIF":0.0,"publicationDate":"2024-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147905591","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Polymers from renewable resources: Drug delivery platforms for transdermal delivery 可再生资源聚合物：透皮给药平台

Polymers from Renewable Resources Pub Date : 2024-07-26 DOI: 10.1177/20412479241266955

Pooyan Makvandi, Madineh Moradialvand, Ehsan Nazarzadeh Zare

引用次数: 0

Lactic acid-facilitated surface modification of nanocellulose extracted from Borassus flabellifer leaves 乳酸促进了从长叶紫草叶中提取的纳米纤维素的表面改性

Polymers from Renewable Resources Pub Date : 2024-07-24 DOI: 10.1177/20412479241266957

Ankit Chakraborty, Pradnya Ghalsasi, P. Radha

引用次数: 0

Recent advances in enhancing thermoelectric performance of polymeric materials 提高聚合物材料热电性能的最新进展

Polymers from Renewable Resources Pub Date : 2024-07-23 DOI: 10.1177/20412479241266953

R. Mulla, Sharnappa Chapi

引用次数: 0

Exploring the performance of bio-based PLA/PHB blends: A comprehensive analysis 探索生物基聚乳酸/聚对苯二甲酸乙二醇酯混合物的性能：综合分析

Polymers from Renewable Resources Pub Date : 2024-07-23 DOI: 10.1177/20412479241266954

Luyao Gao, Aleksey D. Drozdov

{"title":"Exploring the performance of bio-based PLA/PHB blends: A comprehensive analysis","authors":"Luyao Gao, Aleksey D. Drozdov","doi":"10.1177/20412479241266954","DOIUrl":"https://doi.org/10.1177/20412479241266954","url":null,"abstract":"Poly(lactic acid) (PLA) is a bio-based linear aliphatic polyester that is broadly used in biomedical applications. A shortcoming of PLA is its brittleness and low toughness. Poly(hydroxybutyrate) (PHB) is a microbial bioprocessed and biodegradable polyester. To enhance toughness of PLA, it was melt-blended with PHB-based thermoplastic elastomer in various proportions by using a twin-screw extruder. Scanning electron microscope images reveal that PLA forms a continuous phase in PLA/PHB blends reinforced with inclusions of PHB. Fourier transform infrared spectroscopy measurements demonstrate strong intermolecular interactions between PLA and PHB chains. Differential scanning calorimeter thermogramms show that PHB reduces the glass transition temperature of PLA and affects its crystalline structure. When the mass fraction of PHB was 20, the glass transition temperature of the blend decreased to 33.9°C. Rheological measurements demonstrate that blending of PLA with PHB changes qualitatively the dependence of its viscosity on shear rate. Quasi-static (uniaxial tension) and dynamic (impact) tests confirm that blending of PLA with PHB results in a noticeable (by a factor of three) increase in its impact toughness and causes transition from the brittle to ductile regime of fracture. When the mass fraction of PHB was 40, the impact toughness reached to 0.40 kJ/m2, almost 3 times to neat PLA.","PeriodicalId":20353,"journal":{"name":"Polymers from Renewable Resources","volume":"100 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141812203","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Production of nanocomposite films based on low density polyethylene/surface activated nanoperlite for modified atmosphere packaging applications 生产基于低密度聚乙烯/表面活性纳米铂的纳米复合薄膜，用于改良气氛包装应用

Polymers from Renewable Resources Pub Date : 2024-07-23 DOI: 10.1177/20412479241266958

R. Sahraeian, S. Paran, Masoud Esfandeh, G. Naderi

{"title":"Production of nanocomposite films based on low density polyethylene/surface activated nanoperlite for modified atmosphere packaging applications","authors":"R. Sahraeian, S. Paran, Masoud Esfandeh, G. Naderi","doi":"10.1177/20412479241266958","DOIUrl":"https://doi.org/10.1177/20412479241266958","url":null,"abstract":"The modified atmosphere packaging films based on polyethylene nanocomposites reinforced with perlite nanoparticles were prepared using a blow molding machine. The perlite particles were first reduced to nano dimensions using an abrasive mill, then the porosity of nanoperlite was increased to improve their efficiency in absorbing ethylene gas. For this purpose, 6 normal sodium hydroxide solution at 50°C temperature was used. Finally, perlite nanoparticles were modified by polymethyl hydrogen siloxane silane compound. In each of the stages of grinding and modifying the perlite surface, the necessary tests including dynamic light diffraction test, nitrogen absorption test and ethylene gas absorption test were performed using gas chromatography method. The results showed that the size of perlite particles was reduced to 500 nm by using an abrasive mill, and the surface modification process increased the specific surface area of perlite by 10 times. Based on this, the amount of ethylene gas absorption in perlite nanoparticles with modified surface increased up to 3 times compared to normal perlite. The results of the gas chromatography test showed that the nanocomposite film based on polyethylene reinforced with 6% by weight of modified perlite nanoparticles has several times the efficiency in absorbing ethylene gas compared to the potassium permanganate sachets The results of the mechanical properties tests of nanocomposite film in comparison with pure polyethylene film showed that nanocomposite film has higher properties than pure polyethylene. The results of shelf-life tests of green tomatoes packed in nanocomposite film based on polyethylene reinforced with modified nanoperlite showed that green tomatoes can be stored for two months using the prepared modified atmosphere packaging.","PeriodicalId":20353,"journal":{"name":"Polymers from Renewable Resources","volume":"42 8","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141813247","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Letter re: Polymers from renewable resources: Plant-based nanoparticles 信件内容：来自可再生资源的聚合物：植物基纳米粒子

Polymers from Renewable Resources Pub Date : 2024-07-22 DOI: 10.1177/20412479241266956

Hossein Ipakchi, Ali Mohammadi

引用次数: 0

Polymers from renewable resources: Glucose from enzymatic hydrolysis of hemp biomass 来自可再生资源的聚合物：酶水解大麻生物质产生的葡萄糖

Polymers from Renewable Resources Pub Date : 2024-07-22 DOI: 10.1177/20412479241266952

V. Toteva, Ivo Valchev, S. Petrin

引用次数: 0

Phosphorylation of chitin and chitosan: A review on its significance and various synthesis routes 甲壳素和壳聚糖的磷酸化：关于其意义和各种合成路线的综述

Polymers from Renewable Resources Pub Date : 2024-03-01 DOI: 10.1177/20412479241227139

Geeta, Satish Kumar, Shivani, Shayoraj, Mohit Saini, Santosh Kumar Dubey

{"title":"Phosphorylation of chitin and chitosan: A review on its significance and various synthesis routes","authors":"Geeta, Satish Kumar, Shivani, Shayoraj, Mohit Saini, Santosh Kumar Dubey","doi":"10.1177/20412479241227139","DOIUrl":"https://doi.org/10.1177/20412479241227139","url":null,"abstract":"Over the past few decades, chitin and chitosan, value-added biopolymers obtained majorly from seafood wastes, have been extensively evaluated and utilized for their application in plenty of domains such as biomedical, pharmaceutical, agricultural, food processing industries, fuel cells, wastewater curing, and flame retardants. A vast number of physical, chemical, and enzymatic approaches have been followed to improve the biological activities, biocompatibility, and physicochemical properties of chitin and chitosan. Among the innumerable modifications, this article focuses primarily on the importance of phosphorylation, as it intensifies not only water solubility but also tissue regeneration, flame retardation, ionic conductivity, metal chelation, and drug-carrying abilities. Furthermore, the aim of this review is to thoroughly assess various techniques that involve the use of phosphorylating agents such as phosphoric acid, phosphorus acid, phosphorus oxychloride, phosphorus pentoxide, and the grafting method to synthesize phosphorylated derivatives of chitin and chitosan, so that a clear vision can be provided to the reader aimed at choosing a best-fit method for phosphorylation.","PeriodicalId":20353,"journal":{"name":"Polymers from Renewable Resources","volume":"82 23","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140087244","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Biosensors from renewable resources: Decarbonization and sustainability 来自可再生资源的生物传感器：去碳化和可持续性

Polymers from Renewable Resources Pub Date : 2024-02-29 DOI: 10.1177/20412479241233849

M. Saeb

引用次数: 0