Effect of sorbitan-based surfactants on glass transition temperature of cellulose esters

Amim, Jorge; Blachechen, Leandro Schafranski; Petri, Denise Freitas Siqueira

doi:10.1007/s10973-011-1796-y

Cited by 17 publications

(14 citation statements)

References 21 publications

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“…These efforts include the development of safe, more stable and more compatible, biobased, and functional plasticizers. Sugar based plasticizers, such as sorbitan, 216,225 polyoxyethylene sorbitan monopalmitate, 225 polyoxyethylene sorbitan monostearate, 216 are also reported. The use of an ionic liquid plasticizer synthesized from choline chloride and urea, such as deep eutectic solvent (DES), has been recently reported as a safe and novel plasticizer of cellulose acetate.…”

Section: Cellulose Acetatementioning

confidence: 99%

Progress in bio-based plastics and plasticizing modifications

Mekonnen

Mussone

Khalil³

et al. 2013

J. Mater. Chem. A

688

423

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Over the coming few decades bioplastic materials are expected to complement and gradually replace some of the fossil oil based materials. Multidisciplinary research efforts have generated a significant level of technical and commercial success towards these bio-based materials. However, extensive application of these bio-based plastics is still challenged by one or more of their possible inherent limitations, such as poor processability, brittleness, hydrophilicity, poor moisture and gas barrier, inferior compatibility, poor electrical, thermal and physical properties. The incorporation of additives such as plasticizers into the biopolymers is a common practice to improve these inherent limitations. Generally, plasticizers are added to both synthetic and bio-based polymeric materials to impart flexibility, improve toughness, and lower the glass transition temperature. This review introduces the most common bio-based plastics and provides an overview of recent advances in the selection and use of plasticizers, and their effect on the performance of these materials. In addition to plasticizers, we also present a perspective of other emerging techniques of improving the overall performance of bio-based plastics. Although a wide variety of bio-based plastics are under development, this review focuses on plasticizers utilized for the most extensively studied bioplastics including poly(lactic acid), polyhydroxyalkanoates, thermoplastic starch, proteinaceous plastics and cellulose acetates. The ongoing challenge and future potentials of plasticizers for bio-based plastics are also discussed.

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Section: Cellulose Acetatementioning

confidence: 99%

Progress in bio-based plastics and plasticizing modifications

Mekonnen

Mussone

Khalil³

et al. 2013

J. Mater. Chem. A

688

423

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“…Ethanol speeded up the evaporation of water. Glycerol and Tween 20 were chosen because they are efficient plasticizers for polysaccharides and cellulose derivatives . Tween 20 also reduces the surface tension of Phase A, facilitating its spreading on the surfaces …”

Section: Resultsmentioning

confidence: 99%

“…Glycerol and Tween 20 were chosen because they are efficient plasticizers for polysaccharides and cellulose derivatives. 27 Tween 20 also reduces the surface tension of Phase A, facilitating its spreading on the surfaces. 28 The higher content of plasticizers (H-Plast) led to more homogeneous and flexible films and facilitated the handling and detachment from the PS dishes.…”

Section: Physicochemical Properties Of Spray-coated Filmsmentioning

confidence: 99%

Physicochemical and antimicrobial properties of in situ crosslinked alginate/hydroxypropyl methylcellulose/ε‐polylysine films

Blachechen

Petri

2019

J of Applied Polymer Sci

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In the present study, in situ crosslinked films were easily prepared by the spray deposition of Phase A, composed by sodium alginate (Alg), hydroxypropyl methylcellulose (HPMC), ε‐polylysine (ε‐PL), and plasticizers, followed by the spray deposition of Phase B (Ca2+ ions) on polystyrene dishes. The effect of the amount of plasticizer, HPMC, and ε‐PL in Phase A on the films properties was explored in a set of 12 systems. Fourier transform infrared vibrational spectroscopy in the attenuated total reflectance mode revealed that plasticizers compete with Ca2+ ions for complexation with Alg. Films with high HPMC content and low content of plasticizer and ε‐PL presented the best mechanical properties. The best system presented Young modulus of 0.76 ± 0.10 GPa, water vapor transmission of 5.35 ± 0.28 mg cm−2 h−1, swelling ratio of 1374 ± 97%, 99.99% reduction against Gram‐negative Escherichia coli bacteria, and 99.9% reduction against Gram‐positive Staphylococcus aureus bacteria. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2020, 137, 48832.

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“…The initial temperature and mid-cycle temperature were set to 298K and 500K, respectively. The temperature range covers different glass transition temperatures (T g ) of CAB and plasticizers (CAB: 403.2K, BDNPF/A: 208.6K, Bu-NENA: 189.7K, EGBAA: 203.7K, DEGBAA: 209.9K, GAPA: 194.4K, PETKAA: 237.8K, TMNTA: 239.1K) [ 12 , 13 , 14 , 15 , 16 , 17 , 18 ]. The heating ramps per cycle was 25, which was a proper step number.…”

Section: MD Simulationmentioning

confidence: 99%

Study on Cellulose Acetate Butyrate/Plasticizer Systems by Molecular Dynamics Simulation and Experimental Characterization

Wang

Jin

et al. 2020

Polymers

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Cellulose acetate butyrate (CAB) is a widely used binder in polymer bonded explosives (PBXs). However, the mechanical properties of PBXs bonded with CAB are usually very poor, which makes the charge edges prone to crack. In the current study, seven plasticizers, including bis (2,2-dinitro propyl) formal/acetal (BDNPF/A or A3, which is 1:1 mixture of the two components), azide-terminated glycidyl azide (GAPA), n-butyl-N-(2-nitroxy-ethyl) nitramine (Bu-NENA), ethylene glycol bis(azidoacetate) (EGBAA), diethylene glycol bis(azidoacetate) (DEGBAA), trimethylol nitromethane tris (azidoacetate) (TMNTA) and pentaerythritol tetrakis (azidoacetate) [PETKAA], were studied for the plasticization of CAB. Molecular dynamics simulation was conducted to distinguish the compatibilities between CAB and plasticizers and to predict the mechanical properties of CAB/plasticizer systems. Considering the solubility parameters, binding energies and intermolecular radical distribution functions of these CAB/plasticizer systems comprehensively, we found A3, Bu-NENA, DEGBAA and GAPA are compatible with CAB. The elastic moduli of CAB/plasticizer systems follow the order of CAB/Bu-NENA>CAB/A3>CAB/DEGBAA>CAB/GAPA, and their processing property is in the order of CAB/Bu-NENA>CAB/GAPA>CAB/A3>CAB/DEGBAA. Afterwards, all the systems were characterized by FT-IR, differential scanning calorimetry (DSC), differential thermogravimetric analysis (DTA) and tensile tests. The results suggest A3, GAPA and Bu-NENA are compatible with CAB. The tensile strengths and Young’s moduli of these systems are in the order of CAB/A3>CAB/Bu-NENA>CAB/GAPA, while the strain at break of CAB/Bu-NENA is best, which are consistent with simulation results. Based on these results, it can be concluded that A3, Bu-NENA and GAPA are the most suitable plasticizers for CAB binder in improving mechanical and processing properties. Our work has provided a crucial guidance for the formulation design of PBXs with CAB binder.

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Effect of sorbitan-based surfactants on glass transition temperature of cellulose esters

Cited by 17 publications

References 21 publications

Progress in bio-based plastics and plasticizing modifications

Progress in bio-based plastics and plasticizing modifications

Physicochemical and antimicrobial properties of in situ crosslinked alginate/hydroxypropyl methylcellulose/ε‐polylysine films

Study on Cellulose Acetate Butyrate/Plasticizer Systems by Molecular Dynamics Simulation and Experimental Characterization

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