Synthesis and characterization of functional porous organic polymers as efficient metallocene catalyst supports

2016 ◽  
Vol 40 (10) ◽  
pp. 8324-8333 ◽  
Author(s):  
Xiong Wang ◽  
Renwei Xu ◽  
Bochao Zhu ◽  
Yanfeng Li ◽  
Yanping Ma
Keyword(s):  
Pore Structure ◽  
Dispersion Polymerization ◽  
Metallocene Catalyst ◽  
Synthesis And Characterization ◽  
Catalyst Supports ◽  
Organic Polymers ◽  
Porous Organic Polymers ◽  
Structure And Morphology

Porous P(HEMA-co-DVB) particles with tunable pore structure and morphology were prepared by a dispersion polymerization strategy.

Synthesis and Characterization of Multiferroic NiFe2O4/BiFeO3 Nanocomposites by Modified Pechini Method

2011 ◽  
Vol 197-198 ◽  
pp. 456-459
Author(s):  
Xian Ming Liu ◽  
Wen Liang Gao
Keyword(s):  
Pechini Method ◽  
Synthesis And Characterization ◽  
X Ray Diffraction ◽  
Magnetic Bias ◽  
Field Frequency ◽  
Magnetic Field Frequency ◽  
X Ray ◽  
Structure And Morphology ◽  
Modified Pechini Method

Spinel-perovskite multiferroics of NiFe2O4/BiFeO3 nanoparticles were prepared by modified Pechini method. The structure and morphology of the composites were examined by means of X-ray diffraction (XRD) and scanning electron microscopy (SEM). The results showed that the composites consisted of spinel NiFe2O4 and perovskite BiFeO3 after annealed at 700°C for 2h, and the particle size ranges from 40 to 100nm. VSM and ME results indicated that the nanocomposites exhibited both tuning magnetic properties and a ME effect. The ME effect of the nanocomposites strongly depended on the magnetic bias and magnetic field frequency.

scholarly journals Synthesis and characterisation of non-ionic AB-diblock nanoparticles prepared by RAFT dispersion polymerization with polymerization-induced self-assembly

RSC Advances ◽  
2016 ◽  
Vol 6 (33) ◽  
pp. 28130-28139 ◽  
Author(s):  
Yiwen Pei ◽  
Kevin Jarrett ◽  
Leonardo Gutierrez Garces ◽  
Martin Saunders ◽  
Jean-Philippe Croue ◽  
...  
Keyword(s):  
Self Assembly ◽  
Soft Matter ◽  
Dispersion Polymerization ◽  
Synthesis And Characterization

The RAFT-PISA synthesis and characterization of non-ionic soft matter nanoparticles is described.

Synthesis and Characterization of Novel Hybrid Ladderlike Polysilsesquioxanes Containing Polypropylene Moieties

2013 ◽  
Vol 845 ◽  
pp. 204-208
Author(s):  
Deock Sam Park ◽  
Tae Sung Ha ◽  
Jung Hyurk Lim ◽  
Kyung Min Kim
Keyword(s):  
Melting Temperature ◽  
Hybrid Materials ◽  
Char Yield ◽  
Synthesis And Characterization ◽  
Hydroxyl Groups ◽  
Organic Polymers ◽  
Interesting Candidate ◽  
Ft Ir

Novel ladderlike polysilsesquioxanes containing polypropylene moieties (LPS-PP) were synthesized from LPS having chloromethylphenyl groups (LPS) and polypropylene having hydroxyl groups (PP-OH). LPS-PP was characterized by FT-IR, DSC, SEM, EDX, and TGA. The obtained LPS-PP shows no melting temperature due to the disappearance of melting temperature of PP, indicating the rigidity of Si-O-Si backbone in ladderlike LPS. The char yield of LPS-PP is higher than that of PP-OH because of the silica parts of LPS. This new LPS-PP can be an interesting candidate to fabricate hybrid materials using interactions or compatibility between PP moieties of LPS and various organic polymers.

Prototypes for the Polaronic Ferromagnet. Synthesis and Characterization of High-Spin Organic Polymers

1994 ◽  
Vol 116 (18) ◽  
pp. 8152-8161 ◽  
Author(s):  
Michael M. Murray ◽  
Piotr Kaszynski ◽  
David A. Kaisaki ◽  
Wonghil Chang ◽  
Dennis A. Dougherty
Keyword(s):  
High Spin ◽  
Synthesis And Characterization ◽  
Organic Polymers

scholarly journals Synthesis and Characterization of a New Aluminosilicate Molecular Sieve from Aluminosilica Perhydrate Hydrogel

Materials ◽  
2020 ◽  
Vol 13 (23) ◽  
pp. 5469
Author(s):  
Haiqiang Ma ◽  
Kun Jiao ◽  
Xiangyu Xu ◽  
Jiaqing Song
Keyword(s):  
Molecular Sieves ◽  
Molecular Sieve ◽  
Critical Factor ◽  
Synthesis And Characterization ◽  
X Ray ◽  
Cell Parameters ◽  
Structure And Morphology ◽  
Novel Structure ◽  
Pure Phase

A novel structure aluminosilicate molecular sieve, named BUCT-3, was prepared by dynamic hydrothermal synthesis, and the critical factor to obtain the new structure is using an active silicon and aluminum source, aluminosilica perhydrate hydrogel. Meanwhile, only high content of O-O bonds can ensure the pure phase of BUCT-3. Through the characterization of x-ray powder diffraction (XRD), Fourier transform infrared spectra (FTIR), scanning electron microscopy (SEM), and so on, some structure and morphology information of BUCT-3 molecular sieves as well as the special silicon and aluminum source was obtained. It’s worth noticing that the O-O bonds of reactants can be reserved in the products, and thus, help us to get a new structure with cell parameters a = 8.9645 Å, b = 15.2727 Å, c = 11.3907 Å, α = 90°, β = 93.858°, γ = 90°. The crystal system is monoclinic. Though the thermostability of BUCT-3 is not satisfactory, its potential application derived from O-O bonds cannot be neglected.

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