Intercalation polymerization of allene hydrocarbons in polar and nonpolar media

Poly (amic acid) s (PAAs) were synthesized using 4,4′-(hexafluoroisopropyl-idene) diphthalic anhydride (6FDA) and two types of diamines—bis(3-aminophenyl) sulfone (BAS) and bis(3-amino-4-hydroxyphenyl) sulfone (BAS-OH). Two series of transparent polyimide (PI) hybrid films were synthesized by solution intercalation polymerization and thermal imidization using various concentrations (from 0 to 1 wt%) of organically modified clay Cloisite 30B in PAA solution. The thermo-mechanical properties, morphology, and optical transparency of the hybrid films were observed. The transmission electronic microscopy (TEM) results showed that some of the clays were agglomerated, but most of them showed dispersed nanoscale clay. The effects of -OH groups on the properties of the two PI hybrids synthesized using BAS and BAS-OH monomers were compared. The BAS PI hybrids were superior to the BAS-OH PI hybrids in terms of thermal stability and optical transparency, but the BAS-OH PI hybrids exhibited higher glass transition temperatures (Tg) and mechanical properties. Analysis of the thermal properties and tensile strength showed that the highest critical concentration of organoclay was 0.50 wt%.

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Effect of polyaniline/organophilic montmorillonite composites on properties of epoxy coating

Corrosion Reviews ◽

10.1515/corrrev-2014-0025 ◽

2014 ◽

Vol 32 (5-6) ◽

pp. 227-236 ◽

Cited By ~ 3

Author(s):

Yingjun Zhang ◽

Jingwei Deng ◽

Yawei Shao ◽

Qiumei Shi ◽

Guozhe Meng ◽

...

Keyword(s):

Epoxy Resin ◽

Electrochemical Impedance ◽

Epoxy Coating ◽

X Ray Diffraction ◽

Hydrophobic Property ◽

Scanning Calorimetry ◽

Composite Powders ◽

Organophilic Montmorillonite ◽

Intercalation Polymerization

AbstractPolyaniline/organophilic montmorillonite (PANI/OMMT) composite powders were synthesized by in situ intercalation polymerization and were added to the epoxy coating as an anti-corrosive pigment. Fourier translation infrared spectroscopy (FT-IR), X-ray diffraction, and contact angle test were used to characterize the PANI/OMMT powders. The epoxy coating containing the PANI/OMMT powders was studied by electrochemical impedance spectroscopy (EIS), scanning electron microscopy (SEM), differential scanning calorimetry (DSC), and pull-off adhesion test. The results indicated that a unique combination of OMMT and PANI was realized by in situ intercalation polymerization, that the hydrophobic property of PANI/OMMT powders was enhanced and PANI/OMMT powders had good compatibility with epoxy resin, and that the anti-corrosive property of PANI/OMMT coating was better than that of epoxy resin coating.

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Intercalation/Polymerization of the Anilinium Cation in the VOPO4Interlayer Space

Chemistry Letters ◽

10.1246/cl.1993.423 ◽

1993 ◽

Vol 22 (3) ◽

pp. 423-426 ◽

Cited By ~ 30

Author(s):

Hiroshi Nakajima ◽

Gen-etsu Matsubayashi

Keyword(s):

Intercalation Polymerization

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Poly(trimethylene terephthalate) nanocomposite fibers by in situ intercalation polymerization: thermo-mechanical properties and morphology (I)

Polymer ◽

10.1016/j.polymer.2004.05.012 ◽

2004 ◽

Vol 45 (15) ◽

pp. 5171-5181 ◽

Cited By ~ 51

Author(s):

Jin-Hae Chang ◽

Sung Jong Kim ◽

Seungsoon Im

Keyword(s):

Mechanical Properties ◽

Nanocomposite Fibers ◽

Trimethylene Terephthalate ◽

Intercalation Polymerization

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Preparation of Epoxy/Montmorillonite Nanocomposite Coating and its Application in the High-Temperature Oil-Gas Environment with H2S

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.154-155.508 ◽

2010 ◽

Vol 154-155 ◽

pp. 508-514 ◽

Cited By ~ 1

Author(s):

Xian Fang Wang ◽

Yin Chun Hu ◽

Ya Ping Li ◽

Qiong Zhou

Keyword(s):

Mechanical Properties ◽

High Temperature ◽

Epoxy Resin ◽

Interlayer Spacing ◽

Nanocomposite Coating ◽

High Temperature And Pressure ◽

Temperature And Pressure ◽

Gas Environment ◽

Intercalation Polymerization ◽

Oil Gas

Montmorillonite was introduced into the multicomponent epoxy resin by using the intercalation polymerization. Intercalation effect of epoxy/montmorillonite composite system and the influence of the addition of montmorillonite on the glass transition temperature (Tg), mechanical properties and barrier of H2S to coating under high temperature and pressure conditions were investigated. The results showed that it was easy to intercalate epoxy resin into the organic montmorillonite layers, and the interlayer spacing of Montmorillonite was further swelled. In addition, the epoxy/montmorillonite nanocomposite coating with intercalated/ exfoliated structures were prepared. Compared to pure epoxy coating, the heat resistance and mechanical properties of epoxy/montmorillonite nanocomposite coating were slightly improved, and the barrier efficiency to H2S was substantially increased under high temperature and pressure oil-gas environment.

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Two-Stage in Situ Intercalation Polymerization of Acrylic Copolymer/Montmorillonite Nanocomposites

Industrial & Engineering Chemistry Research ◽

10.1021/ie200236x ◽

2011 ◽

Vol 50 (13) ◽

pp. 7784-7790 ◽

Cited By ~ 1

Author(s):

Ming Gao ◽

Dong-Liang Zhou ◽

Xiao Hu ◽

Pu-Xin Zhu

Keyword(s):

Two Stage ◽

Acrylic Copolymer ◽

Intercalation Polymerization ◽

Montmorillonite Nanocomposites

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Study on preparation and humidity-control performance of organobentonite/sodium polyacrylate composite material

Science and Engineering of Composite Materials ◽

10.1515/secm-2013-0140 ◽

2015 ◽

Vol 22 (1) ◽

pp. 1-6

Author(s):

Min Li

Keyword(s):

Composite Material ◽

Environmental Scanning ◽

Sodium Polyacrylate ◽

Control Performance ◽

X Ray Diffraction ◽

Adsorption Ability ◽

Moisture Adsorption ◽

Humidity Control ◽

Adsorption Capacities ◽

Intercalation Polymerization

AbstractIn this work, organobentonite/sodium polyacrylate (OBT/PAAS) humidity-control composite material was prepared using intercalation polymerization. The humidity-control performance of this composite material was tested by desiccator method. Its morphology and structure were investigated by X-ray diffraction and environmental scanning electronic microscopy. The results showed that the nanoscale layers of bentonite (BT) were dispersed in the polymer matrix of the prepared OBT/PAAS. OBT/PAAS has great moisture adsorption ability under high relative humidity (RH). The moisture adsorption ability of OBT/PAAS is greater than its moisture release ability, and its moisture adsorption rate is greater than its moisture release rate. The moisture adsorption capacities of BT, OBT, and OBT/PAAS at 97.42%RH are 0.12, 0.20, and 0.87 g/g, respectively.

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