MCM-41 and SBA-15 supported CpZrCl catalysts for the preparation of nano-polyethylene fibres via in situ ethylene extrusion polymerization

Dong, Xiaochen; Wang, Li; Jiang, Guohua; Zhao, Zhang; Sun, Tianxu; Yu, Haipeng; Wang, Wen-Qin

doi:10.1016/j.molcata.2005.06.060

Cited by 12 publications

(11 citation statements)

References 17 publications

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“…Focused on these properties, many researchers immobilized catalysts on the mesopores of MMS for ethylene polymerization [4][5][6][7][8][9]. The most notable one among these was that Aida and coworkers [4] used MSF as support for the immobilization of Cp 2 TiCl 2 and applied it for the synthesis of polyethylene nanofibers.…”

Section: Introductionmentioning

confidence: 99%

Nanofibrous ultrahigh molecular weight polyethylene synthesized using TiCl4 as catalyst supported on MCM-41 and SBA-15

Lei

Wang

et al. 2011

Polym. Bull.

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Nanofibrous ultrahigh molecular weight polyethylene (UHMWPE) was synthesized via Ziegler-Natta catalyst anchoring on MCM-41 and SBA-15 as supported catalysts, respectively. These supported catalysts exhibited high activity at different temperatures and Al/Ti ratios, and showed different polymerization kinetics behaviors which were well explained by their different pore structures. The ultrahigh molecular weight of polyethylene might be due to the restrained spaces of the supported catalysts mesopores prohibiting the polymer chains transfer reaction. The obtained nanofibrous morphology might be for the high enough stress generated in the mesopores extruding the polymer out to form.

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Section: Introductionmentioning

confidence: 99%

Nanofibrous ultrahigh molecular weight polyethylene synthesized using TiCl4 as catalyst supported on MCM-41 and SBA-15

Lei

Wang

et al. 2011

Polym. Bull.

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“…Research papers published in recent years demonstrate the ability of these mesoporous silicas to produce nanometer scaled PE through space confined polymerization [20][21][22]. Dong et al produced PE nanofibers with Cp 2 ZrCl 2 fixed on MCM-41 and SBA-15 where the later fibers possess larger diameters due to the higher SBA-15 pore diameter [23]. After supporting an iron(II)-bisimine pyridine catalyst on SBA-15, Xu et al obtained polyethylene with higher molar mass than its homogeneous counterpart and fibrous morphology [24].…”

mentioning

confidence: 99%

UHMWPE/SBA-15 nanocomposites synthesized by in situ polymerization

Ferreira

Cerrada

Pérez

et al. 2016

Microporous and Mesoporous Materials

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“…Furthermore, the incorporation of these ordered and hollow mesostructures as a minority component into neat polymers becomes a very attractive approach that can be used to achieve hybrid polymeric-based materials. In fact, they have been used as hosts and reactors in various polymerization reactions [ 16 , 17 , 18 , 19 , 20 , 21 ], where they also acted as catalyst carriers and as a reinforcing material [ 22 , 23 , 24 , 25 ]. In addition, these pristine mesoporous silicas are capable of chemical medication, which supposes a versatile range of methodologies that can be implemented to easily attain tailored functionalized polymeric composites [ 26 , 27 ] with fine-tuned performance characteristics.…”

Section: Introductionmentioning

confidence: 99%

Nanocomposites of PCL and SBA-15 Particles Prepared by Extrusion: Structural Characteristics, Confinement of PCL Chains within SBA-15 Nanometric Channels and Mechanical Behavior

et al. 2021

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A study of different nanocomposites based on poly(ε-caprolactone) (PCL) and mesoporous SBA-15 silica that were prepared by melt extrusion was carried out by analyzing the possible effect of this filler on the crystalline details of PCL, on its mechanical behavior, and on the eventual observation of the confinement of the polymeric chains within the hollow nanometric silica channels. Thus, simultaneous Small-Angle and Wide-Angle X-ray Scattering (SAXS/WAXS) synchrotron experiments at variable temperature were performed on these PCL nanocomposites with different mesoporous silica contents. The importance of the morphological and structural features was assessed by the changes that were observed during the mechanical response of the final materials, which determined that the presence of mesoporous particles leads to a noticeable reinforcing effect.

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MCM-41 and SBA-15 supported CpZrCl catalysts for the preparation of nano-polyethylene fibres via in situ ethylene extrusion polymerization

Cited by 12 publications

References 17 publications

Nanofibrous ultrahigh molecular weight polyethylene synthesized using TiCl4 as catalyst supported on MCM-41 and SBA-15

Nanofibrous ultrahigh molecular weight polyethylene synthesized using TiCl4 as catalyst supported on MCM-41 and SBA-15

UHMWPE/SBA-15 nanocomposites synthesized by in situ polymerization

Nanocomposites of PCL and SBA-15 Particles Prepared by Extrusion: Structural Characteristics, Confinement of PCL Chains within SBA-15 Nanometric Channels and Mechanical Behavior

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