Thermomechanical behavior of hydrogen-bond based supramolecular poly(ε-caprolactone)-silica nanocomposites

Neikirk, Colin; Chung, Jaewoo; Priestley, Rodney D.

doi:10.1039/c3ra42031k

Cited by 28 publications

(28 citation statements)

References 58 publications

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“…Research has shown that incorporation of nanomaterials significantly affects different properties of polymers including mechanical/ physical properties [62][63][64]. Embedding nanomaterials in a host matrix results in material properties that are not achieved by either phase alone [65,66], typically caused by interactions of the nanomaterials and matrix [67,68]. In nanocomposite materials, combination of polymer and nanomaterials at the nanoscale results in materials that are highly homogeneous resulting in the development o f novel materials with excellent properties.…”

Section: Self-healing Of Polymer Nanocomposites: Chemistry and Applicmentioning

confidence: 99%

Self-healing polymer nanocomposite materials: A review

Thakur

Kessler

2015

Polymer

595

295

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During the last few years, different kinds of autonomic and non-autonomic self-healing materials have been prepared using diverse techniques for a number of applications. The incorporation of suitable functionalities into these materials facilitates a healing mechanism that is triggered by damage/ rupture as well as various chemistries. This article presents a detailed study of the self-healing properties of different kinds of polymer nanocomposites utilizing a number of healing mechanisms, including the addition of several healing agents. The article will also provide an overview of different chemistries employed in the preparation of self-healing polymer nanocomposites, along with their advantages and disadvantages.

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Section: Self-healing Of Polymer Nanocomposites: Chemistry and Applicmentioning

confidence: 99%

Self-healing polymer nanocomposite materials: A review

Thakur

Kessler

2015

Polymer

595

295

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“…17,18 Excellent NP dispersion was achieved presumably due to the existence of multiple hydrogen bonds between the NPs and the polymer matrix, a concept that has been used in previous works. For example, Heo et al 19 used gold NPs grafted with 2.8 kg.mol -1 (noted K in the future use) P(S-r-2VP) chains (grafting density of 1.7 chains/nm 2 ) in a 24.4 K P(S-r-4VPh) matrix.…”

mentioning

confidence: 98%

Enhanced Glassy State Mechanical Properties of Polymer Nanocomposites via Supramolecular Interactions

et al. 2015

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It is now well accepted that the addition of nanoparticles (NPs) can strongly affect the thermomechanical properties of the polymers into which they are incorporated. In the solid (glassy) state, previous work has implied that optimal mechanical properties are achieved when the NPs are well dispersed in the matrix and when there is strong interfacial binding between the grafted NPs and the polymer matrix. Here we provide strong evidence supporting the importance of intermolecular interactions through the use of NPs grafted with polymers that can hydrogen bond with the matrix, yielding to significant improvements in the measured mechanical properties. Our finding thus supports the previously implied central role of strong interfacial binding in optimizing the mechanical properties of polymer nanocomposites.

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“…Quaternary ammonium salt modified natural MMT(CH 2 CH 2 OH) 2 (1 g, 1.22 mmol, OH content) was added in round bottom flask and dried under vacuum at 90 °C for 30 min and then UPy‐isocyanate (0.64 mg, 2.44 mmol) and chloroform (50 mL) were added . This mixture was flushed with nitrogen for 30 min in chloroform (30 mL), and it was heated to 60 °C for 18 h with continuous stirring.…”

Section: Methodsmentioning

confidence: 99%

Polymer/clay nanocomposites through multiple hydrogen‐bonding interactions

Aydın

Uyar

Taşdelen

et al. 2014

J. Polym. Sci. Part A: Polym. Chem.

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An 2-ureido-4[1H]pyrimidinone (UPy) motif with self-association capability (through quadruple hydrogen bonds) was successfully anchored onto montmorillonite clay layers. Polymer/clay nanocomposites were prepared by specific hydrogen bonding interactions between surface functionalized silica nanoclays and UPy-bonded supramolecular poly(ethylene glycol) or poly(E-caprolactone). The mixed morphologies including intercalated layers with a non-uniform separation and exfoliated single layers isolated from any stack were determined by combined X-ray diffraction and transmission electron microscopic measurements. Thermal analyses showed that all nanocomposites had higher decomposition temperatures and thermal stabilities compared with neat polymer. The differential scanning calorimetric data implied that the crystallinity of polymers did not show essential changes upon introduction of organomodified UPy clays. V C 2014 Wiley Periodicals, Inc. J.

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Thermomechanical behavior of hydrogen-bond based supramolecular poly(ε-caprolactone)-silica nanocomposites

Cited by 28 publications

References 58 publications

Self-healing polymer nanocomposite materials: A review

Self-healing polymer nanocomposite materials: A review

Enhanced Glassy State Mechanical Properties of Polymer Nanocomposites via Supramolecular Interactions

Polymer/clay nanocomposites through multiple hydrogen‐bonding interactions

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