Nylon 10 10–montmorillonite nanocomposite made by intercalating polymerization

Zhang, Guosheng; Li, Yongjin; Yan, Deyue; Xu, Youyong

doi:10.1002/pen.10017

Cited by 15 publications

(13 citation statements)

References 20 publications

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“…The nylon 10,10–MMT nanocomposite was prepared by intercalating polymerization 9. The MMT was firstly modified with 11‐aminoundecanoic acid.…”

Section: Methodsmentioning

confidence: 99%

“…However, it is possible to overcome these drawbacks through the preparation of a nylon 10,10–MMT nanocomposite. Recently, nylon 10,10–MMT nanocomposites have been prepared successfully by intercalating polymerization in our lab, and this nanocomposite has a higher modulus and onset temperature of decomposition compared with neat nylon 10,10 9…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Crystallization kinetics and melting behavior of nylon 10,10 in nylon 10,10–montmorillonite nanocomposites

Zhang

Yan

2003

J of Applied Polymer Sci

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ABSTRACT:The crystallization kinetics and melting behavior of nylon 10,10 in neat nylon 10,10 and in nylon 10,10 -montmorillonite (MMT) nanocomposites were systematically investigated by differential scanning calorimetry. The crystallization kinetics results show that the addition of MMT facilitated the crystallization of nylon 10,10 as a heterophase nucleating agent; however, when the content of MMT was high, the physical hindrance of MMT layers to the motion of nylon 10,10 chains retarded the crystallization of nylon 10,10, which was also confirmed by polarized optical microscopy. However, both nylon 10,10 and nylon 10,10 -MMT nanocomposites exhibited multiple melting behavior under isothermal and nonisothermal crystallization conditions. The temperature of the lower melting peak (peak I) was independent of MMT content and almost remained constant; however, the temperature of the highest melting peak (peak II) decreased with increasing MMT content due to the physical hindrance of MMT layers to the motion of nylon 10,10 chains.

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“…The nylon 10,10–MMT nanocomposite was prepared by intercalating polymerization 9. The MMT was firstly modified with 11‐aminoundecanoic acid.…”

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Crystallization kinetics and melting behavior of nylon 10,10 in nylon 10,10–montmorillonite nanocomposites

Zhang

Yan

2003

J of Applied Polymer Sci

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“…The intercalated nanocomposites, where the polymer chains are inserted between silicate layers but the well ordered multilayer morphology of the clay is still present, are usually achieved through solution blending and melt intercalation. [10][11][12][13][14][15] The exfoliated clay structure, where the silicate layers are completely delaminated into single sheets and randomly orientated in polymer matrix, could be possibly achieved through in situ polymerization. 3,[5][6][7][8] Weimer 5 reported a successful strategy to achieve exfoliated polystyrene/ layered silicate nanocomposites by in situ freeradical polymerization.…”

Section: Introductionmentioning

confidence: 99%

Synthesis, rheology, and morphology of nylon‐11/layered silicate nanocomposite

Zhang

Yang

Lin

2006

J Polym Sci B Polym Phys

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Exfoliated nylon-11/layered silicate nanocomposites were prepared via in situ polymerization by dispersing organoclay in 11-aminoundecanoic acid monomer. The original clay was modified by a novel method with 11-aminoundecanoic acid. In situ Fourier transform infrared spectroscopy results show that stronger hydrogen bonds exist between nylon-11 and organoclay than that of between nylon-11 and original clay. The linear dynamic viscoelasticity of organoclay nanocomposites was investigated. Before taking rheological measurements, the exfoliated and intercalating structures and the thermal properties were characterized using X-ray diffraction, transmission electron microscopy, differential scanning calorimetry, and thermogravimetric analysis. The results show that the clay was uniformly distributed in nylon-11 matrix during in situ polymerization of clay with 4 wt % or less. The presence of clay in nylon-11 matrix increased the crystallization temperature and the thermal stability of nanocomposites prepared. Rheological properties such as storage modulus, loss modulus, and relative viscosity have close relationship with the dispersion favorably compatible with the organically modified clay. Comparing with neat nylon-11, the nanocomposites show much higher dynamic modulus and stronger shear thinning behavior.

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“…Zhang et al [123] have reported that the degree of crystallinity of Nylon 10,10/ clay nanocomposites remained almost constant, while the degree of supercooling decreased with the increase in clay content. This observation was attributed to the heterophase nucleation of Nylon 10,10 due to the presence of clay layers.…”

Section: Nylon 1010mentioning

confidence: 99%

Crystallization in Polymer Nanocomposites

Jog

2010

Optimization of Polymer Nanocomposite Properties

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Over the past decade, polymer nanocomposites have been a topic of great interest to research groups in both pure and applied materials science [1 -4] . These nanocomposites are two -phase materials wherein a fi ller with at least one dimension in the range of 1 to 100 nm is dispersed in the polymer matrix. Various nanofi llers such as carbon nanotube s ( CNT s), inorganic nanoparticles, or layered silicates such as clay are used. These nanocomposites show remarkable property improvements as compared to virgin polymers; moreover, this occurs at very low fi ller loadings when compared to conventional microcomposites. The properties of these nanocomposites are dependent on the morphology generated during their processing. In the case of semi -crystalline polymers, this is more crucial as the crystallization of polymers takes place during processing. A knowledge of the crystallization process, and the effect of these nanofi llers on the crystallization behavior of polymer nanocomposites, is therefore imperative to acquire an understanding of structure -property relationships in polymer nanocomposites.Crystallization in polymers has been the subject of great academic interest, as polymers are known to exhibit a variety of structures at various length scales, such as the unit -cell, lamella, and spherulites. The crystallization of polymers results in different morphologies, depending on the crystallization conditions and the presence of other components. The presence of a second phase either a polymer or a low -molecular -weight compound or inorganic fi ller has a profound effect on the crystallization of the polymer. In nanocomposites, the dimensions of the second phase are close to the chain dimensions, and a number of studies have attempted to elucidate the effect of nanosized fi llers on the crystallization kinetics, the crystalline morphology, and the crystalline forms of polymers. In this chapter, a brief review is presented of recent investigations into the effects of nanofi llers on various aspects of crystallization, such as isothermal crystallization, nonisothermal crystallization, spherulitic growth, and polymorphism.

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Nylon 10 10–montmorillonite nanocomposite made by intercalating polymerization

Cited by 15 publications

References 20 publications

Crystallization kinetics and melting behavior of nylon 10,10 in nylon 10,10–montmorillonite nanocomposites

Crystallization kinetics and melting behavior of nylon 10,10 in nylon 10,10–montmorillonite nanocomposites

Synthesis, rheology, and morphology of nylon‐11/layered silicate nanocomposite

Crystallization in Polymer Nanocomposites

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