Water-Based Synthesis of Novel Hybrid Material of Sulfated Polysaccharide Through Radical Polymerization Process. Issue 1 (31st December 2023)

• Record Type: Journal Article
• Authors: Kumar, Maneesh; Gehlot, Praveen Singh; Parihar, Deepika; Paliwal, Rajeev; Surolia, Praveen K.; Prasad, Gayatri
• Is Part Of: Journal of natural fibers. Volume 20:Issue 1(2023)
• Publication Date: 2023-12-31
• Subjects: Chaetomorpha antennina -- polysaccharide -- microwave irradiation -- peak/trough ratio -- chirotopical profile -- radical polymerization; 安氏角藻 -- 多糖 -- 微波辐射 -- 峰谷比 -- 脊椎局部轮廓 -- 自由基聚合; Textile research -- Periodicals; Textile research; Periodicals; 677.005
• DOI: 10.1080/15440478.2022.2152151
• Languages: English
• ISSNs: 1544-0478

Abstract

ABSTRACT: Water-soluble "sulfated polysaccharides of Chaetomorpha antennina" (CMsps) seaweed were isolated and fractionated (charged & neutral) using column chromatography followed by modification with acrylamide (AAm) to get novel hybrid materials. This polysaccharide comprises 6.356 polydispersity which ascribes to their branching behavior. The crude polysaccharides consist of ribose, arabinose, xylose, and galactose, carbohydrates units. The peak that appeared in the FT-IR spectrum at 1250 cm −1 confirms the sulfated nature of polysaccharides. The charged polysaccharides, pronounced "control CMsps" before the modification, were modified with AAm under microwave irradiation and characterized to investigate potential grafting. FT-IR, SEM, C 13 NMR, TGA, XRD, CD, and optical rotation were applied for control CMsps and CMsps- g -PAAm (grafted product). The FT-IR and SEM tools have significant capability to prove occurring successful potential grating with fluctuating peaks and morphology, respectively. XRD graphs for materials "control CMsps and CMsps- g -PAAm" reaffirm the successful grafting, leading to symmetrical molecular construction. TGA graphs support the exclusive thermal stability of CMsps- g -PAAm rather than control CMsps. The varying peak/trough ratio was evaluated by the CD spectrum, which identified the reversal change in the chirotopical profile with the insertion of polyacrylamide (PAAm) in polysaccharide chains. The materials, control CMsps and CMsps- g -PAAm were capable to develop hydrogel hence it can be exploited as a promising rheological modifier for food industry applications. The materials can also be useful in the biomedical field as demulcent drug formulation, dental impression product, and drug delivery for local therapy. Graphical abstract: uf0001