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Uzbekistan Journal of PolymersVol. 2. Issue 2. (2023)

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Uzbekistan Journal of PolymersVol. 2. Issue 2. (2023) 230201

On modern aspects of the Development of polymer science in Uzbekistan. Scientific and public activities of academician S.Sh. Rashidova

To the 80-th anniversary of Sayyora Sharafovna Rashidova

This paper is dedicated to the 80th anniversary of the outstanding Uzbek chemist Sayyora Sharafovna Rashidova. This paper briefly describes the most significant strokes - the stages of scientific activity related to the development of polymer science in Uzbekistan ... Read More

Keywords:  polymer, science, education, chemical, science

 

Uzbekistan Journal of PolymersVol. 2. Issue 2. (2023) 230202

ON FUNDAMENTAL AND APPLIED ASPECTS OF CREATING NON-TOXIC POLYMER AGRICULTURAL PREPARATIONS

Vokhidova N.R.

This paper is dedicated to the 80th anniversary of the outstanding Uzbek scientist, Honored Scientist of the Republic of Uzbekistan, founder of the Society of Chitinologists of Uzbekistan, Academician Sayyora Sharafovna Rashidova. This paper briefly describes her contribution to ... Read More

Keywords:  chitin-chitosan, Bombyx, mori, biological, activity

 

Uzbekistan Journal of PolymersVol. 2. Issue 2. (2023) 230203

PREPARATION OF AN AZOXYSTROBIN FORMULATION WITH FOLIAR ADHESION AND SUSTAINED-RELEASE PROPERTIES

Wen Zhang, Yuting Tang ,Guanglu Yu , Hongying Wang, Hongguo Xie, Miao Zhao，Heng Yin.

The conventional pesticides are easily washed off by rainfall, resulting in a low utilization rate.To address this challenge, a novel formulation was developed by incorporating azoxystrobin (AZOX) into chitosan-polyaniline composite microspheres (CTS/PANi). The CTS/PANi microspheres exhibited excellent adhesion properties ... Read More

Keywords:  Azoxystrobin, chitosan, polyaniline, pesticide, formulation

 

Uzbekistan Journal of PolymersVol. 2. Issue 2. (2023) 230204

STUDIES OF THE MORPHOLOGY AND STRUCTURE OF ELECTROSPUN BOMBYX MORI CHITOSAN NANOFIBERS

Ashurov N.Sh., Shakhabutdinov S.Sh., Yugay S.M., Atakhanov A.A., Rashidova S.Sh.

The electrospinning technology was used for preparing nanofibers based on Bombyx mori chitosan. There are many factors that influence the structure of nanofibers, and in this paper, chitosan nanofibers were formed using two solvents (acetic acid and trifluoroacetic ... Read More

Keywords:  Bombyx, mori, chitosan, electrospinning, nanofibers

 

Uzbekistan Journal of PolymersVol. 2. Issue 2. (2023) 230205

ANIONIC POLYSACCHARIDE – GELLAN AS PERSPECTIVE POLYMER FOR POTENTIAL APPLICATION IN MEDICINE AND OIL RECOVERY: A MINI-REVIEW

Kudaibergenov S.E., Tatykhanova G.S., Gizatullina N.N., Tuleyeva R.N., Kaldybekov D.B., Gussenov I.Sh., Berzhanova R.Zh., Mukasheva T.D., Vamvakaki M., Aseyev V.O., Khutoryanskiy V.V.

Potential application of gellan in medicine and oil recovery based on literature survey and own results of authors has been presented in this mini-review. Purification and fractionation procedures of commercial gellan gum have been described. The application of gellan ... Read More

Keywords:  high, acyl, gellan, low, acyl

 

Uzbekistan Journal of PolymersVol. 2. Issue 2. (2023) 230206

POLYMER NANOSTRUCTURES OF CHITOSAN – SYNTHESIS, PROPERTIES AND APPLICATION

Milusheva R.Yu., Rashidova S.Sh.

The synthesis of nanochitosan from Bombyx mori chitosan with particle sizes within the range of 100–200 nm has been carried out. The antibacterial and immunological properties of the synthesized nanochitosan have been studied. It has been found that preparations ... Read More

Keywords:  chitosan, sodium, tripolyphosphate, nanoparticles, antibacterial

 

Uzbekistan Journal of PolymersVol. 2. Issue 2. (2023) 230207

PHYSICOCHEMICAL CHARACTERISTICS OF BIOMATERIALS FROM CELLULOSE FIBER CONTAINED SILVER NANOPARTICLES

Yunusov Kh.E., Mirkholisov M.M., Sarymsakov A.A., Rashidova S.Sh., Guohua Jiang, Agabekov V.Е., Ighnatovich Zh.V.

Stable silver nanoparticles in solutions containing sodium carboxymethylcellulose and cotton fabric have been synthesized, and their structure and physicochemical properties have been studied. The morphology and sizes of the silver nanoparticles formed in sodium carboxymethyl-cellulose solutions and on cotton ... Read More

Keywords:  biomaterials, nanoparticles, sodium, carboxymethylcellulose, cotton

 

Uzbekistan Journal of PolymersVol. 2. Issue 2. (2023) 230208

DFT INVESTIGATION OF CHITOSAN/HYDROXYAPATITE INTERACTION FOR NANOCOMPOSITE CREATION

Nurgaliev I.N., Burkhanova N.J., Rashidova S.Sh.

The interaction between hydroxyapatite (HA) and chitosan (CS) is discussed in terms the electronic properties using Density Functional Theory (DFT) method. According to the calculation data, CS interacts through its hydrogen bonding with OH⁻, Ca²⁺ and PO₄³⁻ of HA. ... Read More

Keywords:  chitosan, hydroxyapatite, DFT, nanocomposite, modeling

 

Uzbekistan Journal of PolymersVol. 2. Issue 2. (2023) 230209

SYNTHESIS, STRUCTURE AND PROPERTIES OF STABLE SELENIUM NANOPARTICLES IN SOLUTON OF SODIUMCARBOXYMETHYLCELLULOSE

Turaqulov F.M., Nazarova Z.M., Yunusov Kh.E., Sarymsakov A.A., RashidovaS.Sh.

In this work, stabilized selenium nanoparticles have been synthesized via the interaction of sodium selenite with ascorbic acid in aqueous solutions of sodium carboxymethylcellulose with a degree of substitution of 0.97and a degree of polymerization of 810. The structure ... Read More

Keywords:  sodiumcarboxymethylcellulose, selenium, nanoparticles, chemical, reduction

 

Uzbekistan Journal of PolymersVol. 2. Issue 2. (2023) 230210

CHITOSAN HYDROXYAPATITE BOMBYX MORI AND ITS EFFECT ON THE TREATMENT OF OSTEOPOROSIS

Ergashev K.H., Vokhidova N.R., Rashidova S.Sh.

In this work, composites of chitosan Bombyx mori (CS) with hydroxyapatite (HA) and their composites structure (CS/HA=50:50 wt. % and Ca/P=1.67%) studied by X-ray diffraction analysis and FITR spectroscopy. The acute toxicity of the composite was studied; after a ... Read More

Keywords:  chitosan, Bombyx, mori, hydroxyapatite, in

 

Uzbekistan Journal of PolymersVol. 2. Issue 2. (2023) 230211

SULPHATION OF BOMBYX MORI CHITOSAN AND STUDY OF THE REACTIVITY OF FUNCTIONAL GROUPS BY THE QUANTUM-CHEMICAL METHODOLOGY

Rakhmanova V.N., Milusheva R.Yu., Nurgaliev I.N., Rashidova S.Sh.

Sulfation of chitosan (CS) Bombyx mori has been carried out using chlorosulfonic acid (CSA) as a sulfonating reagent. Optimal conditions for the production of chitosan sulfate (CHS) with a certain degree of hydrogen substitution of the amino group and ... Read More

Keywords:  Bombyx, mori, CHS, CSA, quantum

 

Uzbekistan Journal of PolymersVol. 2. Issue 2. (2023) 230212

INFLUENCE OF VARIOUS TEXTILE AUXILIARY SUBSTANCES ON WRINKLE OF CELLULOSE-CONTAINING FABRIC

Khasanova S.Kh., Nabieva I.A.

In recent years, the issue of replacing formaldehyde-containing preparations used in the final finishing of cotton fabrics with compounds without formaldehyde or with a low content of it has become particularly relevant. The paper is devoted to the study ... Read More

Keywords:  cotton, fabric, crease-resistant, finish, catalyst

 

Uzbekistan Journal of PolymersVol. 2. Issue 2. (2023) 230213

THE ROLE OF CHITOSAN SUCCINATE IN COLIBACILLOSIS OF CALVES AND THE EFFECT ON THE IMMUNE SYSTEM

Navruzov N.I., Elmurodov B.A.

The paper presents the results of pathological anatomical and histological changes in the body of calves with colibacillosis under natural conditions, when the polyvalent GOA against colibacillosis, salmonellosis and pasteurellosis is used in combination with the formol vaccine and ... Read More

Keywords:  colibasillosis, immunoglobulin, agglutinabilation, chitosan, immunostimulant