Development of organic glass using Interpenetrating Polymer Networks with enhanced resistance towards scratches and solvents

Berrebi, Mickaël; Fabre-Francke, Isabelle; Lavédrine, Bertrand; Fichet, Odile

doi:10.1016/j.eurpolymj.2014.12.010

Cited by 22 publications

(14 citation statements)

References 22 publications

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“…IPNs can be classified as semi-IPNs (SIPN) and full-IPNs. SIPNs are cross-linked linear polymer structures and IPNs consist of at least two polymers, in which one polymer network is cross-linked in the presence of the other polymer network (Dragan, 2014;Berrebi et al, 2015;Zhang et al, 2015). It has been shown that the IPN and SIPN structures can improve the mechanical performance and dimensional stability of functional hydrogels (Yang et al, 2014;Berrebi et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Cellulose nanofibers reinforced sodium alginate-polyvinyl alcohol hydrogels: Core-shell structure formation and property characterization

Yue

Han

et al. 2016

Carbohydrate Polymers

136

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Core-shell structured hydrogels consisting of a flexible interpenetrating polymer network (IPN) core and a rigid semi-IPN shell were prepared through chemical crosslinking of polyvinyl alcohol (PVA) and sodium alginate (SA) with Ca(2+) and glutaraldehyde. Short cellulose nanofibers (CNFs) extracted from energycane bagasse were incorporated in the hydrogel. The shell was micro-porous and the core was macro-porous. The hydrogels could be used in multiple adsorption-desorption cycles for dyes, and the maximum methyl blue adsorption capacity had a 10% increase after incorporating CNFs. The homogeneous distribution of CNFs in PVA-SA matrix generated additional hydrogen bonds among the polymer molecular chains, resulting in enhanced density, viscoelasticity, and mechanical strength for the hydrogel. Specifically, the compressive strength of the hydrogel reached 79.5kPa, 3.2 times higher than that of the neat hydrogel.

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Section: Introductionmentioning

confidence: 99%

Cellulose nanofibers reinforced sodium alginate-polyvinyl alcohol hydrogels: Core-shell structure formation and property characterization

Yue

Han

et al. 2016

Carbohydrate Polymers

136

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“…To confirm and further characterize the modification of the crosslinking density of PABMI according to the chosen diamine, the different PABMIs were analyzed by DMA. Indeed, the higher the crosslinking density, the higher the mechanical relaxation temperature ( T α ) . Thus, the tan δ loss factors were reported as function of temperature in Figure and the T α values were measured at the maximum of peak.…”

Section: Resultsmentioning

confidence: 99%

Synthesis and characterization of poly(aminobismaleimide)s obtained from solvent‐free mixtures

Soisson¹,

Chikh²,

Banet³

et al. 2018

J of Applied Polymer Sci

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A series of eight poly(aminobismaleimide)s containing aromatic units have been synthesized from a one-step nucleophilic addition reaction between diamine and bismaleimide, without exogeneous solvent, to provide encapsulant withstanding high temperature suitable for power electronics. To have a homogeneous medium at room temperature, the solid aromatic diamines are first mixed with different liquid aliphatic ones, and then mixed with bismaleimide. The syntheses were then carried out at 175 8C for 15 min. Thus, according to their composition, these obtained thermosetting resins are characterized by a relaxation temperature between 98 and 190 8C and a coefficient of thermal expansion between 20 and 150 ppm/K. All material surfaces are hydrophobic and their moisture uptake is lower than 2-3 wt %. Finally, as expected, the substitution of a part of the aliphatic diamine by an aromatic one improves the thermal stability under air atmosphere of the resulting materials (T d 5 280-300 8C increased to T d 5 315-340 8C). Their use as power module encapsulant can therefore be considered.

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“…In IPN structures, at least one polymer is crosslinked, and the other polymer does not form a covalent bond with the first polymer network. [460][461][462] The IUPAC definition states that an IPN is "A polymer comprising two or more networks which are at least partially interlaced on a molecular scale but not covalently bonded to each other and cannot be separated unless chemical bonds are broken. A mixture of two or more preformed polymer networks is not an IPN", [463,464] in which, the clear difference between an IPN and a polymer blend has been described.…”

Section: Ipn Hydrogelsmentioning

confidence: 99%

Hydrogel: Diversity of Structures and Applications in Food Science

Jia

Luo

2021

Food Reviews International

103

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Hydrogels are a series of soft and wet materials with three dimensions of crosslinked networks. Hydrogels have attracted great attention due to their diverse functional properties, and their wide range of applications, such as in soft robots and actuators, stretched electronic devices, tissue engineering materials, controlled-release drug delivery vehicles, biomedicine materials, food science, and (bio)sensors. In general, there are four core concerns in hydrogel science, including the polymer source, structure fabrication, gel function, and gel applications. According to the logic that the "structure determines function", it is believed that rational design of structures can effectively regulate the functions and applications of hydrogels. Hence, in the current review, "structure" as the core topic will be highly regarded, and the crosslinking mechanisms and structural diversity of hydrogels are comprehensively summarized. Additionally, hydrogels also show their great application potential in food science. Hence, the current review also pays more attention to the application of hydrogels in food nutrition and health, food engineering and processing, and food safety. It is whished that this review not only serves as a reference for improving the comprehensive understanding of the structural design of hydrogels but also provides a forward-looking idea for hydrogel applications in food science.

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Development of organic glass using Interpenetrating Polymer Networks with enhanced resistance towards scratches and solvents

Cited by 22 publications

References 22 publications

Cellulose nanofibers reinforced sodium alginate-polyvinyl alcohol hydrogels: Core-shell structure formation and property characterization

Cellulose nanofibers reinforced sodium alginate-polyvinyl alcohol hydrogels: Core-shell structure formation and property characterization

Synthesis and characterization of poly(aminobismaleimide)s obtained from solvent‐free mixtures

Hydrogel: Diversity of Structures and Applications in Food Science

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