A Benign and Simple Strategy for Surface Modification of Al2O3 Nanoparticles with Citric Acid and L(+)-Ascorbic Acid and Its Application for the Preparation of Novel Poly(vinyl chloride) Nanocomposite Films

ABSTRACT

In this research, the preparation of nanocomposites (NCs) containing nonaggregated nanoparticles (NPs) was studied. Alumina NPs were functionalized by two coupling agents, citric acid and ascorbic acid. NCs of poly(vinyl chloride) (PVC) doped with varying amounts of modified Al2O3 NPs were synthesized via the ultrasonication method. The X‐ray diffraction confirmed that the structure of the modified Al2O3 NPs was still preserved in a pure crystalline phase with the hexagonal structure.

Surface Modification of ZrO2 Nanoparticles with Biosafe Coupling Agents, Preparation of Poly(vinyl pyrrolidone) Nanocomposites: Optical, Thermal, and Morphological Studies

Abstract

In this study, a series of green and environmental friendly nanocomposites (NCs) were prepared using poly(vinyl pyrrolidone) (PVP), citric acid, vitamin C, and ZrO2 nanoparticles (NPs) as biosafe and biocompatible agents. To develop dispersion and interfacial compatibility of ZrO2 NPs with PVP matrix, at first the surface of NPs was modified with citric acid and vitamin C. Then, the novel NCs were fabricated by adding various amounts of modified ZrO2 NPs in the PVP matrix.

A Benign and Simple Strategy for Surface Modification of Al2O3 Nanoparticles with Citric Acid and L(+)-Ascorbic Acid and Its Application for the Preparation of Novel Poly(vinyl chloride) Nanocomposite Films

ABSTRACT

In this research, the preparation of nanocomposites (NCs) containing nonaggregated nanoparticles (NPs) was studied. Alumina NPs were functionalized by two coupling agents, citric acid and ascorbic acid. NCs of poly(vinyl chloride) (PVC) doped with varying amounts of modified Al2O3 NPs were synthesized via the ultrasonication method. The X‐ray diffraction confirmed that the structure of the modified Al2O3 NPs was still preserved in a pure crystalline phase with the hexagonal structure.

Preparation, morphological and thermal characterization of novel nanocomposites based on poly (amide-ester-imide) containing amino acid and nano-Mg-doped fluorapatite surface modified with biodegradable diacid N-trimellitylimido-L-leucine

Abstract

In this investigation, we prepared novel nanocomposites (NC) s based on poly (amide-ester-imide) (PAEI) containing L-leucine moiety and surface modified nano-Mg-doped fluorapatite (Mod-MgFA) with biodegradable diacid, via ultrasound irradiation. First, surface of nanocystalline Mg-doped fluorapatite was functionalized with biodegradable optically active diacid N-trimellitylimido-L-leucine (TML) by ultrasonic irradiation, so as to increase the compatibility and dispersity in the PAEI matrix.

Role of surface modification of SiO2 with bio-safe citric acid on the morphological and thermal properties of nanocomposites based on N-trimellitylimido-l-methionine diacid and 4,4′-diaminodiphenyl ether: using ultrasound irradiation and ionic liquid

Abstract

In this work, the surface of SiO2 NPs was modified with citric acid (CA) to prevent agglomeration of SiO2 nanoparticles (NP)s in the poly(amide-imide) (PAI) matrix. The PAI was synthesized from polymerization reaction of N-trimellitylimido-l-methionine with 4,4′-diaminodiphenyl ether using molten tetra-n-butylammonium bromide and triphenyl phosphite. PAI–SiO2/CA nanocomposites (PSCN)s were prepared via a fast ultrasonic irradiation process.

Biosafe organic diacid intercalated LDH/PVC nanocomposites versus pure

Highly real nanostructured clay adsorbents of layered double hydroxide (LDH) intercalated with biosafe and

anionic organic diacid was produced at a constant pH with the coprecipitation method. XRD results disclosed

that organic anionic segment is horizontally oriented in the interlayer space, which is obvious from developed

basal spacing of 0.76 to 1.36 nm. Also, a successfully LDH intercalation with examined biosafe diacid was observed

using FT-IR and TGA analysis. Organo-intercalated LDH (I-LDH)/PVC nanocomposites (NCs) with different

Thiamine hydrochloride (vitamin B1) as modifier agent for TiO2 nanoparticles and the optical, mechanical, and thermal properties of poly(vinyl chloride) composite films

Abstract

In the present investigation, TiO2 nanoparticles (NPs) were used for improving the thermal, mechanical and optical properties of poly(vinyl chloride) (PVC) matrix. To prevent the aggregation of TiO2 NPs, surface modification of TiO2 NPs was performed using vitamin B1 as a natural organic molecule with environmentally friendly and inexpensive properties.

Antimicrobial, mechanical, optical and thermal properties of PVC/ZnO-EDTA nanocomposite films

Abstract

Covalent surface functionalization of synthesized ZnO nanoparticles (NP)s with ethylenediaminetetraacetic acid (EDTA) was successfully carried out. Modified ZnO-EDTA NPs as a viable and inexpensive filler were incorporated into poly(vinyl chloride) PVC matrix after their chemical modification to investigate the agglomeration behavior.

A Benign and Simple Strategy for Surface Modification of Al2O3 Nanoparticles with Citric Acid and L(+)-Ascorbic Acid and Its Application for the Preparation of Novel Poly(vinyl chloride) Nanocomposite Films

ABSTRACT

In this research, the preparation of nanocomposites (NCs) containing nonaggregated nanoparticles (NPs) was studied. Alumina NPs were functionalized by two coupling agents, citric acid and ascorbic acid. NCs of poly(vinyl chloride) (PVC) doped with varying amounts of modified Al2O3 NPs were synthesized via the ultrasonication method. The X‐ray diffraction confirmed that the structure of the modified Al2O3 NPs was still preserved in a pure crystalline phase with the hexagonal structure.