Article

Obtaining Dialdehyde Carboxymethylcellulose Through Microwave Treatment

Ilkhom Shukhrat ugli GoyibnazarovCellulose and Its Derivatives Chemistry and Technology Laboratory , Institute of Polymer Chemistry and Physics Academy of Sciences of the Republic of Uzbekistan , A. Kadiri St., 7b, Tashkent , 100128 , UzbekistanYuldoshov Sherzod AbdullaevichCellulose and Its Derivatives Chemistry and Technology Laboratory , Institute of Polymer Chemistry and Physics Academy of Sciences of the Republic of Uzbekistan , A. Kadiri St., 7b, Tashkent , 100128 , UzbekistanСарымсаков Абдушкур АбдухалиловичCellulose and Its Derivatives Chemistry and Technology Laboratory , Institute of Polymer Chemistry and Physics Academy of Sciences of the Republic of Uzbekistan , A. Kadiri St., 7b, Tashkent , 100128 , UzbekistanKhaydar E. YunusovCellulose and Its Derivatives Chemistry and Technology Laboratory , Institute of Polymer Chemistry and Physics Academy of Sciences of the Republic of Uzbekistan , A. Kadiri St., 7b, Tashkent , 100128 , UzbekistanS. S. YarmatovCellulose and Its Derivatives Chemistry and Technology Laboratory , Institute of Polymer Chemistry and Physics Academy of Sciences of the Republic of Uzbekistan , A. Kadiri St., 7b, Tashkent , 100128 , UzbekistanA. I. ShukurovCellulose and Its Derivatives Chemistry and Technology Laboratory , Institute of Polymer Chemistry and Physics Academy of Sciences of the Republic of Uzbekistan , A. Kadiri St., 7b, Tashkent , 100128 , UzbekistanMunojat Bobomurodova SultanmurodovnaDepartment of Exact and Natural Sciences , University of Geological Sciences , Mirzo Ulugbek District, Olimlar Street, 64, Tashkent , UzbekistanYi WanSchool of Life and Health Sciences , Hainan University , Haikou , 570228 , China , hainu.edu.cn

Advances in Polymer Technologyjournal2025en

ABI

Abstract

In this study, we investigated the process of obtaining dialdehyde carboxymethylcellulose (DCMC) with a high molecular mass and aldehyde content (AC) through periodate oxidation under microwave irradiation. We examined the effects of periodate oxidation time, sodium periodate (NaIO 4 ) concentration, and pH value of the solution under microwave treatment on the molecular mass, aldehyde group content, and yield of DCMC. Optimal conditions for the periodate oxidation reaction under microwave irradiation (microwave power level set at 10% or 70 W) were identified as follows: a reaction time of 10 min, oxidant concentration of 2.5% (with a molar ratio of carboxymethylcellulose to NaIO 4 of 1:1), and pH of 3.5. Under these conditions, the oxidation degree of DCMC obtained by microwave treatment was 82%, with a molecular mass of 141 kDa, a polydispersity of 1.4%, and a product yield of 70%. The obtained samples were analyzed using a variety of methods including chemical analysis, FTIR spectroscopy, thermogravimetric analysis, atomic force microscope (AFM), and nuclear magnetic resonance (NMR) spectroscopy.

Topics

Advanced Cellulose Research Studies Biopolymer Synthesis and Applications Mesoporous Materials and Catalysis

Identifiers

DOI: 10.1155/adv/9917563

Citations and references

Cited by 4 30 references

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