scholarly journals Evaluation of Graft Copolymerization of Acrylic Monomers Onto Natural Polymers by Means Infrared Spectroscopy

10.5772/36322 ◽  
2012 ◽  
Author(s):  
José Luis Rivera-Armenta ◽  
Cynthia Graciela Flores-Hernández ◽  
Ruth Zurisadai Del Angel-Aldana ◽  
Ana María Mendoza-Martínez ◽  
Carlos Velasco-Santos ◽  
...  
Keyword(s):  
Infrared Spectroscopy ◽  
Graft Copolymerization ◽  
Natural Polymers ◽  
Acrylic Monomers

Graft Copolymerization of Acrylic Monomers onto Biopolymers. Part I. Grafting of Poly(butyl Acrylate) onto Gelatin

1981 ◽  
Vol 15 (3) ◽  
pp. 515-525 ◽  
Author(s):  
Anne Joseph ◽  
Ganga Radhakrishnan ◽  
T. Nagabhushanam ◽  
K. Thomas Joseph
Keyword(s):  
Butyl Acrylate ◽  
Graft Copolymerization ◽  
Acrylic Monomers

scholarly journals A Review on the Modification of Polysaccharide Through Graft Copolymerization for Various Potential Applications

2017 ◽  
Vol 11 (1) ◽  
pp. 109-126 ◽  
Author(s):  
Deepak Kumar ◽  
Jyoti Pandey ◽  
Vinit Raj ◽  
Pramendra Kumar
Keyword(s):  
Textile Industry ◽  
Graft Copolymerization ◽  
Waste Water Treatment ◽  
Effluent Treatment ◽  
Ceric Ammonium Nitrate ◽  
Tannery Effluent ◽  
Natural Polymers ◽  
Polymer Backbone ◽  
Industry Waste ◽  
Redox Initiator

Introduction: Graft copolymerization is one of the most promising technique uses to modify the properties of naturally available polymers with a minimum loss in their native characteristics. Methods and Materials: Graft copolymerization is a very significant technique to add hybrid properties in backbone of polymers. The grafting generally initiated through the formation of free radical centers on the polymer backbone as well as monomer. Results: Grafted polysaccharides have various applications in different important scientific areas such as drug delivery, pharmaceutical field, plastic industry, waste water treatment, tannery effluent treatment, textile industry, agriculture area, etc. all of this fascinated us to summarize the major research articles over the last two decades outlining different methods of grafting, surface modification, graft copolymerization of synthetic and natural polymers. Conclusion: Various redox initiator systems viz. Ceric ammonium nitrate, per sulfate, Irradiation, FAS-H2O2 etc. is also explored for grafting of vinyl through conventional and non-conventional techniques.

Study on the graft copolymerization of lignosulfonate and acrylic monomers

1980 ◽  
Vol 25 (10) ◽  
pp. 2211-2220 ◽  
Author(s):  
R. Chen ◽  
B. V. Kokta ◽  
J. L. Valade
Keyword(s):  
Graft Copolymerization ◽  
Acrylic Monomers

scholarly journals Getting Graft Cellulose Copolymers and Acrylic Monomers

2019 ◽  
Vol 8 (4) ◽  
pp. 719-723 ◽  
Keyword(s):  
Molecular Weight ◽  
Graft Copolymerization ◽  
Spectroscopic Studies ◽  
Degree Of Polymerization ◽  
Potassium Persulfate ◽  
Water Soluble ◽  
Active Centers ◽  
Solvent Absorption ◽  
Adsorption Interaction ◽  
Acrylic Monomers

Graft copolymers of acrylic monomers with cotton cellulose were obtained. The dependence of the degree and efficiency of grafting of acrylic acid and methyl methacrylate to cellulose on the concentration of monomer and initiator was investigated. Pre-adsorption of the initiator in the macromolecules of cellulose leads to an increase in the efficiency of the grafting. The efficiency of grafting is higher in those systems in which the initiator used is insoluble in the monomer solvent. Absorption of cellulose with an aqueous solution of the initiator - potassium persulfate, followed by removal of water was done. The advantage of using a water-soluble initiator is that during subsequent processing with a solution of monomer in an organic solvent, the desorption of the active centers does not occur. An increase in the concentration of theinitiator leads to an increase in the degree of grafting, a slight increase in the efficiency of the grafting, a significant decrease in the degree of polymerization and the molecular weight of the graft chains. In a heterogeneous process, an increase in the efficiency of grafting with an increase in the concentration of theinitiator is promoted by the additional adsorption interaction of the initiator molecules with the surface of cellulose. With an increase in the concentration of monomers, the overall degree of conversion slightly increases, the efficiency of grafting slightly decreases, the degree of grafting and the molecular weight of the graft chains increase significantly. The mechanism of graft copolymerization was investigated by comparative analysis of the IR and PMR spectra of cellulose, potassium persulfate, acrylic monomers and products of their interaction. Due to the results of spectroscopic studies, a scheme of graft copolymerization reactions has been proposed. The active centers of graft copolymerization are formed as a result of the reductive interaction of potassium persulfate, water and cellulose macromolecules.

Graft copolymerization of different mixtures of acrylic monomers on amylopectin. Swelling behavior

1994 ◽  
Vol 54 (5) ◽  
pp. 577-584 ◽  
Author(s):  
I. Castellano ◽  
B. Pascual ◽  
B. Vazquez ◽  
I. Goñi ◽  
M. Gurruchaga
Keyword(s):  
Graft Copolymerization ◽  
Swelling Behavior ◽  
Acrylic Monomers

Modification of properties of rayon fibre by graft copolymerization with acrylic monomers

2006 ◽  
Vol 41 (22) ◽  
pp. 7296-7301 ◽  
Author(s):  
G. Canché-Escamilla ◽  
D. E. Pacheco-Catalán ◽  
S. B. Andrade-Canto
Keyword(s):  
Graft Copolymerization ◽  
Acrylic Monomers

Modification of low density polyethylene (LDPE) by graft copolymerization with some acrylic monomers

Polymer ◽  
1998 ◽  
Vol 39 (1) ◽  
pp. 193-201 ◽  
Author(s):  
Premamoy Ghosh ◽  
Bibha Chattopadhyay ◽  
Achintya Kumar Sen
Keyword(s):  
Graft Copolymerization ◽  
Low Density Polyethylene ◽  
Low Density ◽  
Acrylic Monomers

scholarly journals Seaweed Polysaccharide Based Products and Materials: An Assessment on Their Production from a Sustainability Point of View

Molecules ◽  
2021 ◽  
Vol 26 (9) ◽  
pp. 2608
Author(s):  
Nishith A. Chudasama ◽  
Rosy Alphons Sequeira ◽  
Kinjal Moradiya ◽  
Kamalesh Prasad
Keyword(s):  
Chemical Modification ◽  
Graft Copolymerization ◽  
Industrial Applications ◽  
Point Of View ◽  
Natural Polymers ◽  
Chemical Derivatives ◽  
The Earth ◽  
Efficient Extraction ◽  
Solvent Systems ◽  
Polysaccharide Derivatives

Among the various natural polymers, polysaccharides are one of the oldest biopolymers present on the Earth. They play a very crucial role in the survival of both animals and plants. Due to the presence of hydroxyl functional groups in most of the polysaccharides, it is easy to prepare their chemical derivatives. Several polysaccharide derivatives are widely used in a number of industrial applications. The polysaccharides such as cellulose, starch, chitosan, etc., have several applications but due to some distinguished characteristic properties, seaweed polysaccharides are preferred in a number of applications. This review covers published literature on the seaweed polysaccharides, their origin, and extraction from seaweeds, application, and chemical modification. Derivatization of the polysaccharides to impart new functionalities by chemical modification such as esterification, amidation, amination, C-N bond formation, sulphation, acetylation, phosphorylation, and graft copolymerization is discussed. The suitability of extraction of seaweed polysaccharides such as agar, carrageenan, and alginate using ionic solvent systems from a sustainability point of view and future prospects for efficient extraction and functionalization of seaweed polysaccharides is also included in this review article.

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