Preparation and characterization of starch nanocomposite embedded with functionalized MWCNT: Investigation of optical, morphological, thermal, and copper ions adsorption properties

Abstract

The purpose of this research was to fabricate starch nanocomposites (NC)s using corn starch and MWCNTs‐Valine as efficient fillers, and to examine the impact of nanofillers on the starch's properties. At first, Valine was grafted onto the MWCNTs' surfaces through a chemical reaction.

Fabrication and characterization of pH-sensitive bio-nanocomposite beads havening folic acid intercalated LDH and chitosan: Drug release and mechanism evaluation

Abstract

In this paper, folic acid (FA) as drug model was intercalated in the structure of layered double hydroxide (LDH) as drug carrier with two coprecipitation and anion exchange methods. The existence of FA drug between the LDH layers was confirmed with FT-IR and XRD analyses.

Fabrication of poly(vinyl alcohol) nanocomposites having different contents of modified SiO2 by vitamin B1 as biosafe and novel coupling agent to improve mechanical and thermal properties

Abstract

In this study, at first, owing to the excessive surface energy and inclination for aggregation, surface treatment of silica (SiO2) nanoparticles (NP)s was performed by vitamin B1 (VB1) as a biodegradable and biocompatible coupling agent. The divergent extent of modified SiO2 (SiO2‐VB1) was incorporated into poly(vinyl alcohol) (PVA) matrix and PVA/SiO2‐VB1 nanocomposites (NC)s were prepared.

Preparation of polystyrene/MWCNT‐Valine composites: Investigation of optical, morphological, thermal, and electrical conductivity properties

Abstract

The attempt of this research was to examine the effect of multiwalled carbon nanotube (MWCNT)‐Valine as efficient fillers on the thermal, optical, and electrical behaviors of polystyrene (PS). To reduce aggregation and obtain uniform spreading of fillers into the PS, at first, MWCNTs' surfaces were modified by Valine amino acid.

Green Synthesis of Amino Acid Functionalized Multi-walled Carbon Nanotubes/Poly(amide–imide) Based on N-Trimellitylimido-S-valine Nanocomposites by Sonochemical Technique

Abstract

Herein, a functional S-valine amino-acid (valine) based poly(amide–imide) (PAI) was prepared in a green situation. Carbon nanotubes (NTs) were functionalized with valine to fabricate NT/PAI nanostructures composite (PNCs) by incorporating NTs into the PAI matrix. Homogeneous dispersion of NTs was achieved by the modified NTs and ultrasonication method. The influences of the functionalized NTs on the morphology, structure, and thermal of PNCs were characterized extensively by several techniques.

Production of bionanocomposites based on poly(vinyl pyrrolidone) using modified TiO2 nanoparticles with citric acid and ascorbic acid and study of their physicochemical properties

Abstract

Poly(vinyl pyrrolidone) (PVP) is a biocompatible, biodegradable, and hydrophilic polymer that has many applications in different fields. Reinforced PVP nanocomposites (NCs) containing titanium dioxide nanoparticles (TiO2 NPs) were prepared through solution casting method. To achieve better distribution of NPs in the polymeric bed, surface modification of NPs is essential. Citric acid (CA) and ascorbic acid (vitamin C) (VC) biomolecules were used as surface modifiers. Modified TiO2 NPs were incorporated in the PVP bed.

Host recycled poly(ethylene terephthalate) and guest PVA-grafted ZnO nanoparticles: prepared nanocomposites characterization

Abstract

This article elaborates on the poly(ethylene terephthalate) (PET) recycling by dissolution–reprecipitation method and then fabrication and examination of its nanocomposites (NC)s with poly(vinyl alcohol) grafted ZnO nanoparticles (NP)s which was fabricated through blending procedure and solution casting process. Functionalization of inorganic NPs was performed via ultrasonic irradiation to improve compatibility with PET as a matrix.