NDLI: Thermoresponsive poly(vinyl alcohol) derivatives: preparation, characterization and their capability of dispersing gold nanoparticles

Please wait, while we are loading the content...

One-step electropolymerization of xanthurenic acid–graphene film prepared by a pulse potentiostatic method for simultaneous detection of guanine and adenine

Double-crystalline PLLA-b-PVDF-b-PLLA triblock copolymers: preparation and crystallization

Novel triple-shape PCU/PPDO interpenetrating polymer networks constructed by self-complementary quadruple hydrogen bonding and covalent bonding

Polystyrene-block-poly(acrylic acid) brushes grafted from silica surfaces: pH- and salt-dependent switching studies

Highly birefringent side-chain LC polymethacrylate with a dinaphthyl-acetylene mesogenic unit

Chain transfer to solvent in the radical polymerization of structurally diverse acrylamide monomers using straight-chain and branched alcohols as solvents

Robust tri(4-ethynylphenyl)amine-based porous aromatic frameworks for carbon dioxide capture

One-pot synthesis and gelation by borax of glycopolymers in water

Synthesis and characterization of a novel cyanostilbene derivative and its initiated polymers: aggregation-induced emission enhancement behaviors and light-emitting diode applications

Green light sensitive diketopyrrolopyrrole derivatives used in versatile photoinitiating systems for photopolymerizations

Structure-dependent emission of polytriazoles

A new strategy of post-polymerization modification to prepare functionalized poly(disubstituted acetylenes)

Sequential post-polymerization modification reactions of poly(pentafluorophenyl 4-vinylbenzenesulfonate)

Glycopolymer-coated gold nanorods synthesised by a one pot copper(0) catalyzed tandem RAFT/click reaction

Optimising the enzyme response of a porous silicon photonic crystal via the modular design of enzyme sensitive polymers

Polymerization-induced self-assembly: ethanolic RAFT dispersion polymerization of 2-phenylethyl methacrylate

Tailoring the glucose-responsive volume phase transition behaviour of Ag@poly(phenylboronic acid) hybrid microgels: from monotonous swelling to monotonous shrinking upon adding glucose at physiological pH

Poly(fluorene-co-thiophene)-based ionic transition-metal complex polymers for solar energy harvesting and storage applications

Reduction-sensitive functionalized copolyurethanes for biomedical applications

Magnetically driven super durable superhydrophobic polyester materials for oil/water separation

Low band gap polymers for application in solar cells: synthesis and characterization of thienothiophene–thiophene copolymers

Fully branched hyperbranched polymers with a focal point: analogous to dendrimers

Thermoresponsive ureido-derivatized polymers: the effect of quaternization on UCST properties

Thermoresponsive poly(vinyl alcohol) derivatives: preparation, characterization and their capability of dispersing gold nanoparticles

A novel poly(2,6-dimethyl-1,4-phenylene oxide) with pendant imidazolium groups for high-temperature proton exchange membrane

Cell-penetrating poly(disulfide)s: focus on substrate-initiated co-polymerization

Bioresorbable terpolymers based on l-lactide, glycolide and trimethylene carbonate with shape memory behaviour

Oligomeric dual functional antibacterial polycaprolactone

Supramolecular X- and H-shaped star block copolymers via cyclodextrin-driven supramolecular self-assembly

Redox-stable and visible/near-infrared electrochromic aramids with main-chain triphenylamine and pendent 3,6-di-tert-butylcarbazole units

RAFT-polymerized poly(hexafluoroisopropyl methacrylate)s as precursors for functional water-soluble polymers

Versatile synthesis of reversible comb-shaped supramolecular polymers

Tilted fiber Bragg gratings as a new sensing device for in situ and real time monitoring of surface-initiated polymerization

Synthesis, nanostructures and dielectric properties of novel liquid crystalline block copolymers

Temperature-induced fluorescence enhancement of GFP chromophore containing copolymers for detection of Bacillus thermophilus

In situ formed crosslinked polyurethane toughened polylactide

Synthesis of fluorinated analogues of a practical polymer TQ for improved open-circuit voltages in polymer solar cells

Crystallization control of etherethersulfone copolymers by regular insertion of an allyl functionality

Synthesis and photovoltaic performances of a conjugated polymer based on a new naphthodifuran monomer

Formation and properties of liquid crystalline supramolecules with anisotropic fluorescence emission

Blocked isocyanates: an efficient tool for post-polymerization modification of polymers

Ring-opening metathesis polymerization of cyclooctene derivatives with chain transfer agents derived from glycerol carbonate

The precise molecular location of gadolinium atoms has a significant influence on the efficacy of nanoparticulate MRI positive contrast agents

Improving the electrical memory performance of pyrazoline moiety via the preparation of its hyperbranched copolymer

A block copolymer-stabilized co-precipitation approach to magnetic iron oxide nanoparticles for potential use as MRI contrast agents

pH-sensitive polycarbonate micelles for enhanced intracellular release of anticancer drugs: a strategy to circumvent multidrug resistance

Back cover

Polymer Chemistry Vol - 5 Issue - 6

Polymer Chemistry Vol - 5 Issue - 5

Polymer Chemistry Vol - 5 Issue - 4

Polymer Chemistry Vol - 5 Issue - 3

Polymer Chemistry Vol -4

Polymer Chemistry Vol -3

Polymer Chemistry Vol -2

Polymer Chemistry Vol -1

Thermoresponsive poly(vinyl alcohol) derivatives: preparation, characterization and their capability of dispersing gold nanoparticles

Content Provider	Royal Society of Chemistry (RSC)
Author	Tong, Jin-Ge Liu, Hua-Ji Wang, Rui-Cong Chen, Yu
Copyright Year	2014
Abstract	Three amino acid derivatives, GI, AI and VI resulted from the corresponding isobutyryl chloride modified Gly, Ala and Val, were each conjugated with some of the hydroxyl groups of poly(vinyl alcohol) (PVA) through a one-step esterification reaction, resulting in PVA-GI, PVA-AI and PVA-VI, respectively. FTIR and 1H NMR verified the successful conjugation of these amino-acid derivative units onto PVA. X-ray diffraction characterization demonstrated that the introduction of these units led to a decrease in the degree of crystallinity. Turbidity measurement showed that GI, AI and VI were all effective molecular units to make such PVA-derivatives thermoresponsive, and the phase transition temperature could be modulated in a wide range by varying the degree of substitution or altering the type of amino-acid derivative. The efficiency of these three molecular units to make PVA thermoresponsive was as follows: VI > AI ∼ GI. Dynamic light scattering (DLS) measurement demonstrated that these thermoresponsive PVA derivatives experienced a conformation transition from the loose coil to the compact and crumbled state, till the aggregated state was attained following the temperature increase. Such thermoresponsive PVA derivatives were good dispersing agents for colloidal gold nanoparticles (AuNPs) in water when enough polymers were used. A core–shell structure was proved by DLS and TEM measurements where the AuNP was covered by a thick organic shell formed by the thermoresponsive PVA derivatives. Turbidity measurement showed that the composites of such PVA derivatives and AuNPs were also thermoresponsive, and they had a little lower phase transition temperature than those of the corresponding neat thermoresponsive PVA derivatives. DLS measurement demonstrated that such thermoresponsive AuNP composites experienced a shell shrinkage and subsequent aggregation of nanoparticles during the temperature increase. Moreover, AuNPs stabilized by such thermoresponsive PVA derivatives showed better salt-resistance than those stabilized by neat PVAs.
Starting Page	2417
Ending Page	2424
Page Count	8
File Format	HTM / HTML PDF
ISSN	17599954
Volume Number	5
Issue Number	7
Journal	Polymer Chemistry
DOI	10.1039/c3py01388j
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Val Isobutyryl chloride X-ray crystallography Ester Hydroxy group Vinyl alcohol Transmission electron microscopy Dynamic light scattering Colloidal gold Carboxylic acid FTIR Ala PVA Nuclear magnetic resonance Artificial intelligence Protein structure Phase transition
Content Type	Text
Resource Type	Article
Subject	Organic Chemistry Biochemistry Bioengineering Biomedical Engineering Polymers and Plastics

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Preparation of monodisperse poly(vinyl alcohol) (PVA) nanoparticles by dispersion polymerization and heterogeneous surface saponification

Composite Poly(vinyl alcohol)-Based Nanofibers Embedding Differently-Shaped Gold Nanoparticles: Preparation and Characterization

Curative Effects of Copper Iodide Embedded on Gallic Acid Incorporated in a Poly(vinyl alcohol) (PVA) Liquid Bandage.

PREPARATION AND CHARACTERIZATION OF COMPOSITES COMPRISING MODIFIED HARDWOOD AND WOOD POLYMERS/POLY(VINYL CHLORIDE)

Influence of Syndiotacticity on Poly(vinyl alcohol)-Iodine Complex Formation

Hydrogels based on chemically modified poly(vinyl alcohol) (PVA-GMA) and PVA-GMA/chondroitin sulfate: Preparation and characterization

Preparation of poly(vinyl acetate)/clay and poly(vinyl acetate)/poly(vinyl alcohol)/clay microspheres

PREPARATION AND CHARACTERIZATION OF COMPOSITES COMPRISING MODIFIED HARDWOOD AND WOOD POLYMERS/POLY(VINYL CHLORIDE)

Amino acid vinyl esters: a new monomer palette for degradable polycationic materials

Thermoresponsive poly(vinyl alcohol) derivatives: preparation, characterization and their capability of dispersing gold nanoparticles

Similar Documents

Preparation of monodisperse poly(vinyl alcohol) (PVA) nanoparticles by dispersion polymerization and heterogeneous surface saponification

Composite Poly(vinyl alcohol)-Based Nanofibers Embedding Differently-Shaped Gold Nanoparticles: Preparation and Characterization

Curative Effects of Copper Iodide Embedded on Gallic Acid Incorporated in a Poly(vinyl alcohol) (PVA) Liquid Bandage.

PREPARATION AND CHARACTERIZATION OF COMPOSITES COMPRISING MODIFIED HARDWOOD AND WOOD POLYMERS/POLY(VINYL CHLORIDE)

Influence of Syndiotacticity on Poly(vinyl alcohol)-Iodine Complex Formation

Hydrogels based on chemically modified poly(vinyl alcohol) (PVA-GMA) and PVA-GMA/chondroitin sulfate: Preparation and characterization

Preparation of poly(vinyl acetate)/clay and poly(vinyl acetate)/poly(vinyl alcohol)/clay microspheres

PREPARATION AND CHARACTERIZATION OF COMPOSITES COMPRISING MODIFIED HARDWOOD AND WOOD POLYMERS/POLY(VINYL CHLORIDE)

Amino acid vinyl esters: a new monomer palette for degradable polycationic materials

Thermoresponsive poly(vinyl alcohol) derivatives: preparation, characterization and their capability of dispersing gold nanoparticles