Preparation and Characterization of Clay-polymer Nanocomposite Having Covalently-bound poly(norbornenes) with Pendant Cholesterols

Penaloza, David P.; Seery, Thomas A. P.

doi:10.1590/1980-5373-mr-2018-0192

Cited by 2 publications

(2 citation statements)

References 30 publications

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“…Since the main bottleneck of interfacial adhesion between the reinforcing fillers and the polymer matrix is the incompatibility of their surfaces, chemical modification of functional groups at the interface is the most convenient method to alleviate this problem. 2,68 Since the polymer is usually at a higher content and has standardized properties, it is more practical to modify the filler component by making it less hydrophilic or by introducing new moieties to act as intermediary groups, such as coupling agents, to mediate interaction between two opposing polarities.…”

Section: Approaches Via Surface Modification Methods For Fiber-reinfomentioning

confidence: 99%

A Review of Abaca Fiber-Reinforced Polymer Composites: Different Modes of Preparation and Their Applications

Barba

Madrid

Penaloza

2020

J. Chil. Chem. Soc.

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Fiber-reinforced polymer composites have received increased attention due to their environmental friendliness and sustainability, aside from at par-if not betterproperty enhancement achieved through fiber reinforcement over mineral-based fillers. The purpose of this article is to provide a comprehensive review on the various methods of fiber-based polymer composites preparation as well as their applications, particularly focusing on abaca-reinforced hybrid materials. Among the natural fibers available in the market, abaca fiber has been a major contender in the development of natural fiber composites. It has a great potential to be a renewable fiber source for industrial and technological applications owing to its inherent high mechanical strength, durability, flexibility and long fiber length. Impacts of different treatment strategies of abaca-based composites preparation resulting in property enhancements over bare polymer counterparts and that of synthetic fibers are discussed. Being eco-friendly and naturally sustainable, abaca fiber-reinforced composites can also exhibit better strength without substantial weight gaincharacteristics that have been exploited in various commercial and technological uses. How these enhanced properties of the resulting composites had led in a wide range of applications such as in the automobile and construction industries and other fields had been included as well.

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Section: Approaches Via Surface Modification Methods For Fiber-reinfomentioning

confidence: 99%

A Review of Abaca Fiber-Reinforced Polymer Composites: Different Modes of Preparation and Their Applications

Barba

Madrid

Penaloza

2020

J. Chil. Chem. Soc.

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“…Different types of ROMP monomers including norbornenes, , cyclooctenes, , cyclooctadienes, , cyclopentenes, , as well as macromonomers with norbornenes end-groups, , are used for surface modification via SI-ROMP. Linear, branched, and bottlebrush polymers are grafted to substrates like gold nanoparticles, clays, silica nanoparticles, silica wafers, etc., to afford unique surface structures and properties. ,− …”

Section: Introductionmentioning

confidence: 99%

Surface Chain-Transfer Ring-Opening Metathesis Polymerization

Wu,

Ren,

Tong

et al. 2023

Langmuir

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Ring-opening metathesis polymerization (ROMP) is a powerful method to graft various types of polymer chains to a given surface. While surface-initiated ROMP (SI-ROMP) serves as an efficient tool for surface modification and is therefore widely reported, the method requires grafting (1) the olefin substrate and (2) the metathesis catalyst to the surface prior to the polymerization with multiple synthetic and work up steps. To overcome this difficulty, we proposed the use of the chain-transfer reaction as an alternative method for surface modification. Terminal olefins are grafted to the surface without the need to graft the metathesis catalysts, and polymers with olefin backbones are polymerized and grafted simultaneously via both ROMP and chain transfer (cross-metathesis between olefins from backbones and surfaces). Compared to SI-ROMP, this surface-chain transfer ROMP (SC-ROMP) method avoids grafting the catalyst and growing polymer chains from the surface and could be achieved in a single step. Various types of surfaces like carbon nanotubes, carbon fibers, graphene nanosheets, and silica microspheres are used for demonstration. We envision that this work could bring a convenient and effective solution to surface modification via ROMP.

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Preparation and Characterization of Clay-polymer Nanocomposite Having Covalently-bound poly(norbornenes) with Pendant Cholesterols

Cited by 2 publications

References 30 publications

A Review of Abaca Fiber-Reinforced Polymer Composites: Different Modes of Preparation and Their Applications

A Review of Abaca Fiber-Reinforced Polymer Composites: Different Modes of Preparation and Their Applications

Surface Chain-Transfer Ring-Opening Metathesis Polymerization

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