Starch-graft-poly(methyl acrylate) copolymer: the new approach to synthesis and copolymer characterization

Ludin, D. V.; Зайцев, С. Д.; Kuznetsova, Yulia L.; Маркин, А. В.; Мочалова, А. Е.; Salomatina, E. V.

doi:10.1007/s10965-017-1280-x

Cited by 18 publications

(10 citation statements)

References 43 publications

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“…The broad absorption band in the range of 3500-3250 cm À1 and peak at 1641 cm À1 are assigned to the stretching n O-H and bending d O-H vibration, respectively, of the hydroxy groups. 35 In StAM, the d O-H signal declined and was largely covered by the new peaks at 1675 cm À1 (n C]O , amide I) and 1608 cm À1 (d N-H , amide II), which is because some of the hydroxyl groups had been replaced by the PAM branching chains via the graing co-polymerization. For the same reason, the absorption band at 3500-3250 cm À1 was widened due to the overlapping of n O-H and n N-H .…”

Section: Ft-irmentioning

confidence: 99%

Synthesis of a novel arginine-modified starch resin and its adsorption of dye wastewater

et al. 2020

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Section: Ft-irmentioning

confidence: 99%

Synthesis of a novel arginine-modified starch resin and its adsorption of dye wastewater

et al. 2020

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“…The grafting reaction of starch is a free radical reaction and thus requires the treatment of initiators to yield free radical sites on the starch chain. After that, the starch chain acts as macro-initiators in the presence of synthetic monomers to obtain polymer grafts of high molecular weight [98]. Li et al [88] prepared the cassava starch-poly (methyl methacrylate)-(CS-g-PMMA) copolymers.…”

Section: Graftingmentioning

confidence: 99%

Development of Starch-Based Materials Using Current Modification Techniques and Their Applications: A Review

et al. 2021

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Starch is one of the most common biodegradable polymers found in nature, and it is widely utilized in the food and beverage, bioplastic industry, paper industry, textile, and biofuel industries. Starch has received significant attention due to its environmental benignity, easy fabrication, relative abundance, non-toxicity, and biodegradability. However, native starch cannot be directly used due to its poor thermo-mechanical properties and higher water absorptivity. Therefore, native starch needs to be modified before its use. Major starch modification techniques include genetic, enzymatic, physical, and chemical. Among those, chemical modification techniques are widely employed in industries. This review presents comprehensive coverage of chemical starch modification techniques and genetic, enzymatic, and physical methods developed over the past few years. In addition, the current applications of chemically modified starch in the fields of packaging, adhesives, pharmaceuticals, agriculture, superabsorbent and wastewater treatment have also been discussed.

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“…We used this catalyst in situ by injecting equimolar amounts of pivalic acid and triethylborane into the reaction mixture. 59 The resulting product was characterized using FTIR and NMR spectroscopies. The FTIR spectrum of initial PLA reveals the band associated with the terminal hydroxyl groups, ca 3600 cm −1 (supporting information, Fig.…”

Section: Pla Borylationmentioning

confidence: 99%

“…[56][57][58] Further, trialkylborane/p-quinone systems were successfully used for graft copolymerization onto starch. 59 Polymers obtained in the presence of trialkylborane/p-quinone systems are characterized by increased thermal stability and isotacticity. 60,61 In this regard, trialkylborane/p-quinone systems are of interest as catalysts for obtaining block copolymers of PLA with synthetic polymers for biomedical usage.…”

Section: Introductionmentioning

confidence: 99%

New method for controlled synthesis of polylactide block copolymers: organoborane/p‐quinone system and reversible‐deactivation radical polymerization

Ludin

Зайцев

Маркин

et al. 2021

Polymer International

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We developed a new approach to obtain polylactide hybrid block copolymers with vinyl monomers (styrene, methyl methacrylate, methyl acrylate) through the realization of a reaction sequence using triethylborane and various p-quinones. The method offered includes two stages. In the first stage, a chain-transfer agent was obtained by borylation of the terminal hydroxyl groups of polylactide. The second stage was vinyl monomer radical polymerization in the presence of p-quinone accompanied by S H 2-substitution at the boron atom.1,4-Naphthoquinone, 2,3-dimethyl-1,4-benzoquinone, duroquinone and 2,5-di-tert-butyl-1,4-benzoquinone were used as synthetic polymer chain growth mediators. It is shown that 1,4-naphthoquinone and 2,3-dimethyl-1,4-benzoquinone, similar in their characteristics, are effective agents providing the realization of reversibledeactivation radical polymerization. Realization of reversible-deactivation radical polymerization was proved with the analysis of the kinetics of block copolymerization, molecular weight characteristics and compositional homogeneity of block copolymers as well as its further capability to elongate the polymer chain. Synthesized block copolymers have a high thermal stability compared to the initial borylated polylactide.

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Starch-graft-poly(methyl acrylate) copolymer: the new approach to synthesis and copolymer characterization

Cited by 18 publications

References 43 publications

Synthesis of a novel arginine-modified starch resin and its adsorption of dye wastewater

Synthesis of a novel arginine-modified starch resin and its adsorption of dye wastewater

Development of Starch-Based Materials Using Current Modification Techniques and Their Applications: A Review

New method for controlled synthesis of polylactide block copolymers: organoborane/p‐quinone system and reversible‐deactivation radical polymerization

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