鞣花酸掺入聚乙烯醇、壳聚糖、聚乙烯醇/壳聚糖和聚乙烯醇/壳聚糖/白胶聚合物薄膜的热性能、结晶性能和形态性能评价

IF 1.7 4区工程技术 Q4 POLYMER SCIENCE

International Journal of Polymer Analysis and Characterization Pub Date : 2023-10-03 DOI:10.1080/1023666X.2023.2270803

Vinayak N. Vanjeri , Vishram D. Hiremani , Naganagouda Goudar , Oshin Jacintha D’souza , Jennifer P. Pinto , Anilkumar R Patil , Shivayogi S. Narasagoudr , Saraswati P. Masti , Ravindra B. Chougale

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引用次数: 0

摘要

本研究制备了鞣花酸掺杂聚乙烯醇（PVA）、壳聚糖（CS）、PVA/CS和PVA/CS/瓜尔胶共混膜，分别编码为EA-1、EA-2、EA-3和EA-4。采用不同的仪器技术对制备膜的理化性质进行了分析。差示扫描量热（DSC）和傅里叶变换红外（FT-IR）结果表明，膜组分之间具有良好的相互作用和互溶性。经热重分析（TGA）证实，鞣花酸掺入PVA膜（EA-1）的热稳定性优于其他膜。从x射线衍射（XRD）研究结果来看，EA-3和EA-4薄膜的非晶态性质有所增加。利用扫描电镜（SEM）和原子力显微镜（AFM）对制备的膜表面形貌进行了分析，结果表明，与鞣花酸共混后制备的膜表面光滑均匀。水接触角（WCA）测试结果表明，所有膜均具有亲水性。所制备的薄膜均表现出良好的力学性能，是一种很有前途的食品包装材料。

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Assessment of thermal, crystalline and morphological properties of ellagic acid incorporated PVA, chitosan, PVA/chitosan and PVA/chitosan/gaur gum polymeric films

In the present study, the ellagic acid doped Polyvinyl alcohol (PVA), Chitosan (CS), PVA/CS and PVA/CS/Guar-gum blend films were prepared and coded as EA-1, EA-2, EA-3 and EA-4, respectively. The physicochemical properties of prepared films were analyzed by using different instrumental techniques. The differential scanning calorimetry (DSC) and Fourier transform infrared (FT-IR) results revealed the good interaction and miscibility among the components of the films. The thermal stability of ellagic acid incorporated PVA film (EA-1) shown more thermal stability in contrast with other films confirmed by thermogravimetric analysis (TGA) analysis. From the results of X-ray diffraction (XRD) study, the increased amorphous nature was observed for the EA-3 and EA-4 films. Surface morphology was analyzed by using scanning electron microscopy (SEM) and atomic force microscopy (AFM) which illustrates that prepared films exhibits smooth and homogeneous surface after blending with ellagic acid. The results obtained by measuring water contact angles (WCA) revealed that all the films have hydrophilic nature. All the prepared films have exhibited good mechanical properties, hence prepared films can act as promising material for food packaging application.

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来源期刊

International Journal of Polymer Analysis and Characterization 化学-高分子科学

CiteScore

3.50

自引率

5.30%

发文量

审稿时长

1.6 months

期刊介绍： The scope of the journal is to publish original contributions and reviews on studies, methodologies, instrumentation, and applications involving the analysis and characterization of polymers and polymeric-based materials, including synthetic polymers, blends, composites, fibers, coatings, supramolecular structures, polysaccharides, and biopolymers. The Journal will accept papers and review articles on the following topics and research areas involving fundamental and applied studies of polymer analysis and characterization: Characterization and analysis of new and existing polymers and polymeric-based materials. Design and evaluation of analytical instrumentation and physical testing equipment. Determination of molecular weight, size, conformation, branching, cross-linking, chemical structure, and sequence distribution. Using separation, spectroscopic, and scattering techniques. Surface characterization of polymeric materials. Measurement of solution and bulk properties and behavior of polymers. Studies involving structure-property-processing relationships, and polymer aging. Analysis of oligomeric materials. Analysis of polymer additives and decomposition products.