Switching from brittle to ductile isotactic polypropylene-g-maleic anhydride by crosslinking with capped-end polyether diamine

Létoffé, Adrien; García-Rodríguez, Santiago M.; Hoppe, Sandrine; Canilho, Nadia; Godard, Olivier; Pasc, Andreea; Royaud, Isabelle; Ponçot, Marc

doi:10.1016/j.polymer.2019.01.015

Cited by 16 publications

(24 citation statements)

References 52 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As exposed in previous works, both parameters tend to slightly decrease with the increase of the molar ratio. 22,23 The 3D network inhibits the molecular chains mobility due to a higher molecular chains order. Finally, the effect of the chemical treatment on the macroscopic polymer properties was also studied using mechanical properties analyzes.…”

Section: Discussionmentioning

confidence: 99%

“…The present work demonstrated the positive impact of cross-linking on the mechanical properties of an iPP-g-MAH as previously described in case of di-and triamine aliphatic coupling agents. 22,23 The 0.75:1 molar ratio is clearly the most relevant formulation since residual reactive maleic anhydride moieties remain available to allow high interaction with metal oxides and then high level of adhesion for the production of multimaterials composites.…”

Section: Discussionmentioning

confidence: 99%

“…The resulting brittle to ductile transition in line with results published earlier. 2,22,23 In order to identify the microstructural processes involved in the deformation at large strains, SEM observations were performed on fracture surfaces. Micrograph in Figure 6(a) illustrates the case of the less modified material (0.5:1).…”

Section: Mechanical Behavior Of Cross-linked Ca100 Materialsmentioning

confidence: 99%

“…[19][20][21] More advanced workers analyzed on the influence of NH 2 :MAH molar ratio on the macromolecular architecture, the cross-link density, the semi-crystalline microstructure and the mechanical properties. 22,23 Calix[n]arene macrocycles are composed of n phenol units (n = 4 to 16) bound to each other by methylene groups. As such, they play an important role in supramolecular chemistry.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Use of a bis(aminoalkyl)‐calix[4]arene derivative as cross‐linking agent to enhance functional and mechanical properties of a maleated polypropylene

Lara

Létoffé

Hoppe

et al. 2020

J of Applied Polymer Sci

Self Cite

View full text Add to dashboard Cite

An isotactic polypropylene grafted by 1 wt% of maleic anhydride (iPP-g-MAH) was chemically modified to provide it with new functional abilities and improved mechanical properties. The specific additive considered in this work is a derivative of bis(aminoalkyl)-calix[4]arene. Not only this molecule serves as a cross-linking agent, but it offers grafting sites for metallic ions that confer electrolytic conductivity to the initially insulating polyolefin. Materials were

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Mechanical Behavior Of Cross-linked Ca100 Materialsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Use of a bis(aminoalkyl)‐calix[4]arene derivative as cross‐linking agent to enhance functional and mechanical properties of a maleated polypropylene

Lara

Létoffé

Hoppe

et al. 2020

J of Applied Polymer Sci

Self Cite

View full text Add to dashboard Cite

show abstract

“…characterised by a round force-displacement response are considered semi-brittle. Semi-brittle materials include polymers [8,9], inorganic materials connected by a soft binder [10], and pharmaceutical granules [11]. Materials with loose structures and a low bond stiffness that exhibit a significant amount of fully plastic deformation prior to failure are considered ductile [5].…”

Section: Materials With Intermediate Compacted Structures and An Intementioning

confidence: 99%

Discrete Element Method Modelling of the Diametral Compression of Starch Agglomerates

et al. 2020

View full text Add to dashboard Cite

Starch agglomerates are widely applied in the pharmaceutical, agricultural, and food industries. The formation of potato starch tablets and their diametral compression were simulated numerically and verified in a laboratory experiment to analyse the microscopic mechanisms of the compaction and the origins of their breakage strength. Discrete element method (DEM) simulations were performed using EDEM software. Samples comprised of 120,000 spherical particles with radii normally distributed in the range of 5–36 μm were compacted in a cylindrical die with a diameter of 2.5 cm. The linear elastic–plastic constitutive contact model with a parallel bonded-particle model (BPM) was used to model the diametral compression. DEM simulations indicated that the BPM, together with the linear elastic–plastic contact model, could describe the brittle, semi-brittle, or ductile breakage mode, depending on the ratio of the strength to Young’s modulus of the bond and the bond-to-contact elasticity ratio. Experiments confirmed the findings of the DEM simulations and indicated that potato starch (PS) agglomerates can behave as a brittle, semi-brittle, or ductile material, depending on the applied binder. The PS agglomerates without any additives behaved as a semi-brittle material. The addition of 5% of ground sugar resulted in the brittle breakage mode. The addition of 5% gluten resulted in the ductile breakage mode.

show abstract

Graphite and Graphene Nanoplatelets (GNP) Filled Polymer Matrix Nanocomposites

et al. 2022

View full text Add to dashboard Cite

Switching from brittle to ductile isotactic polypropylene-g-maleic anhydride by crosslinking with capped-end polyether diamine

Cited by 16 publications

References 52 publications

Use of a bis(aminoalkyl)‐calix[4]arene derivative as cross‐linking agent to enhance functional and mechanical properties of a maleated polypropylene

Use of a bis(aminoalkyl)‐calix[4]arene derivative as cross‐linking agent to enhance functional and mechanical properties of a maleated polypropylene

Discrete Element Method Modelling of the Diametral Compression of Starch Agglomerates

Graphite and Graphene Nanoplatelets (GNP) Filled Polymer Matrix Nanocomposites

Contact Info

Product

Resources

About