Microwave irradiation versus conventional heating assisted free-radical copolymerization in solution

Pérez-Martínez, Bertha T.; Aboudzadeh, M. Ali; Schubert, Ulrich S.; Leiza, José R.

doi:10.1016/j.cej.2020.125761

Cited by 15 publications

(6 citation statements)

References 44 publications

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“…In a more recent study, Tomovska and coworkers [53] experienced the free radical polymerization of methyl methacrylate (MMA), butyl acrylate (BA), styrene (St), and vinyl ferrocene (Vf) which is an organometallic monomer. Reactional mixtures were made of different monomer couples: MMA/BA, MMA/St, and MMA/Vf.…”

Section: Microwaves In Polymer Chemistrymentioning

confidence: 99%

Polymer Processing under Microwaves

Belkhir

Riquet

Becquart

2022

Advances in Polymer Technology

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Over the last decades, microwave heating has experienced a great development and reached various domains of application, especially in material processing. In the field of polymers, this unusual source of energy showed important advantages arising from the direct microwave/matter interaction. Indeed, microwave heating allows regio-, chemio-, and stereo-selectivity, faster chemical reactions, and higher yields even in solvent-free processes. Thus, this heating mode provides a good alternative to the conventional heating by reducing time and energy consumption, hence reducing the costs and ecological impact of polymer chemistry and processing. This review states some achievements in the use of microwaves as energy source during the synthesis and transformation of polymers. Both in-solution and free-solvent processes are described at different scales, with comparison between microwave and conventional heating.

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Section: Microwaves In Polymer Chemistrymentioning

confidence: 99%

Polymer Processing under Microwaves

Belkhir

Riquet

Becquart

2022

Advances in Polymer Technology

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“…Microwave-assisted heating is an efficient thermal treatment that fastens the reaction time 21,22 ; e.g., microwave-assisted acid treatment modifies MMT [23][24][25] . However, the treatment temperatures in these investigations are lower than 100 °C.…”

Section: Introductionmentioning

confidence: 99%

Micro-mechanism of Shear Strength and Water Stability Enhancement of Montmorillonite by Microwave Heating

Qiu

et al. 2022

Mat. Res.

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Microwave heating potentially reinforces the muddy intercalation to eliminate slope failure. Montmorillonite has the worst water resistance among the muddy intercalation components, which is a primary facet of inducing muddy intercalation failure. This study investigates the mechanism of shear strength and water stability enhancement of montmorillonite heated by the microwave oven and muffle furnace from room temperature to 800 °C. Results show that montmorillonite mineralogical evolution can be divided into three stages: room temperature-300 °C, 300-600 °C, and 600-800 °C. Microwave heating is more efficient in montmorillonite heat treatment than muffle furnace heating and makes the montmorillonite dehydroxylated earlier. It is worth noting that hot spots formed inside the montmorillonite specimens during the microwave heat treatment. Microwave significantly promotes the shear resistance of montmorillonite, where the maximum increases are 39.94% of cohesion at 600 °C and 20.54% of internal friction angle at 700 °C. This enhancement is due to the rough surfaces and large particles produced by dehydroxylation and Mg-Al spinel synthesis, and the significant degree of disorder state of MMT after dehydroxylation also plays a vital role. The microwave-heated montmorillonite over 500 °C presents good integrity in the water immersion test over 24 h. Considering the shear behavior and water stability, we believe the most reasonable heating interval for microwaves is 500-600°C.

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“…9 Nowadays, microwave-assisted organic synthesis is widely used. 10,11 The method is "unconventional". The advantage of this technology includes reducing the reaction time by improving the yield and purity of the products, which makes it a "green" and environmentally friendly method.…”

Section: Introductionmentioning

confidence: 99%

Microwave-assisted synthesis of 1,2,3,4-tetrahydroisoquinoline sulfonamide derivatives and their biological evaluation

2021

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Herein we report an alternative eco-friendly method for the synthesis of 1,2,3,4-tetrahydroisoquinoline sulfonamide derivatives. All obtained compounds were screened for their in vitro inhibition of albumin denaturation, antioxidant, antitryptic, and antibacterial activity and have shown significant results. The lipophilicity was established using both reversed-phase thin layer chromatography and in silico calculations.

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Microwave irradiation versus conventional heating assisted free-radical copolymerization in solution

Cited by 15 publications

References 44 publications

Polymer Processing under Microwaves

Polymer Processing under Microwaves

Micro-mechanism of Shear Strength and Water Stability Enhancement of Montmorillonite by Microwave Heating

Microwave-assisted synthesis of 1,2,3,4-tetrahydroisoquinoline sulfonamide derivatives and their biological evaluation

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