Ultrasonic Irradiation Synthesis and Properties of Copolymers of N,N-Dimethylaminoethylmethacrylate with Chitosan

被引：4

作者：

Pochina, Alyona N. ^{[1
]}

Salomatina, Evgeniia V. ^{[1
]}

Knyazev, Alexander V. ^{[1
]}

Shipilova, Anastasia S. ^{[1
]}

Ivashkina, Lydia N. ^{[1
]}

Bobrina, Ekaterina V. ^{[1
]}

Grishin, Ivan D. ^{[1
]}

Apryatina, Kristina V. ^{[1
]}

Mochalova, Alla E. ^{[1
]}

机构：

[1] Natl Res Lobachevsky State Univ Nizhny Novgorod, Gagarin Ave 23,Bld 5, Nizhnii Novgorod 603022, Russia

来源：

JOURNAL OF POLYMERS AND THE ENVIRONMENT | 2023年 / 31卷 / 05期

关键词：

Chitosan; N; N-Dimethylaminoethyl methacrylate; Copolymerization; Ultrasonic irradiation; Films; Physical-mechanical properties; FREE-RADICAL POLYMERIZATION; AQUEOUS-SOLUTION PROPERTIES; BLOCK-COPOLYMERS; GRAFT-COPOLYMERIZATION; METHYL-METHACRYLATE; EMULSION POLYMERIZATION; TEMPERATURE; POLYACRYLAMIDE; SONOCHEMISTRY; DEGRADATION;

D O I：

10.1007/s10924-022-02714-9

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The copolymerization of N,N-dimethylaminoethyl methacrylate (DMAEMA) on chitosan (CTS) using ultrasonic irradiation was performed in the presence of ammonium persulfate (PSA) at a temperature of 343 K. The effect of the DMAEMA concentration in the reaction mixture on the copolymer yield, the degree and effectiveness of grafting, as well as on the physical-mechanical properties of films obtained on the basis of synthesized copolymers was studied. Copolymers formation was proven by extraction, FTIR spectroscopy, XRD analysis. CTS-graft-poly(DMAEMA) copolymers of various compositions were obtained. The DMAEMA grafting degree reached similar to 145 wt% and its grafting effectiveness was similar to 65 wt% with the ratio [DMAEMA]/[CTS] = 5 mol/(base-mol). The tensile strength (from 15.3 to 37.7 MPa) and deformation (from 68 to 612%) can be varied within a wide range by changing the composition of the copolymer and molecular weight of the grafted poly(DMAEMA) chains. Temperatures of physical transitions of the CTS-graft-poly(DMAEMA) copolymers were determined by the DSC and DMA methods; the resulting films are gas-permeable.

引用

页码：1748 / 1759

页数：12

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