New polymeric materials for paper and textile conservation. I. Synthesis and characterization of acrylic copolymers

2005 ◽  
Vol 98 (3) ◽  
pp. 1157-1164 ◽  
Author(s):  
Elisabetta Princi ◽  
Silvia Vicini ◽  
Enrico Pedemonte ◽  
Valeria Arrighi ◽  
Iain McEwen
Keyword(s):  
Polymeric Materials ◽  
Synthesis And Characterization ◽  
Textile Conservation ◽  
Acrylic Copolymers

Synthesis and characterization of functional acrylic copolymers via RAFT mini-emulsion polymerization

2017 ◽  
Author(s):  
Onur Yılmaz ◽  
Çiğdem Kılıçarislan Özkan ◽  
Catalina N. Yılmaz ◽  
Ali Yorgancıoğlu ◽  
Hasan Özgünay ◽  
...  
Keyword(s):  
Emulsion Polymerization ◽  
Synthesis And Characterization ◽  
Acrylic Copolymers

Synthesis and Characterization of Polymeric Materials from Vegetable Oils

2009 ◽  
Vol 286 (1) ◽  
pp. 89-94 ◽  
Author(s):  
Roseany V. V. Lopes ◽  
Nuno Pedro D. Loureiro ◽  
José R. Zamian ◽  
Pâmela S. Fonseca ◽  
Júlio L. Macedo ◽  
...  
Keyword(s):  
Vegetable Oils ◽  
Polymeric Materials ◽  
Synthesis And Characterization

Synthesis and characterization of polyvinylmethylsiloxanes by cationic polymerization using a solid green catalyst

e-Polymers ◽  
2017 ◽  
Vol 17 (5) ◽  
pp. 439-448 ◽  
Author(s):  
Djamal Eddine Kherroub ◽  
Mohammed Belbachir ◽  
Saad Lamouri
Keyword(s):  
Ring Opening ◽  
Polymeric Materials ◽  
Synthesis And Characterization ◽  
Green Catalyst ◽  
Characterization Methods ◽  
H Nmr ◽  
New Strategy ◽  
Cationic Ring Opening Polymerization ◽  
C Nmr

AbstractThe present work is devoted to the synthesis and characterization of vinylsiloxane polymers produced by the use of an activated natural catalyst known as Maghnite-H+. The cationic ring opening polymerization of pentavinylpentamethylcyclopentasiloxane (V5D5) made it possible to obtain the desired polymeric materials. Through this study, we have adapted a new strategy of synthesis of a siloxane polymer with relatively high molecular mass, using a solid initiator activated by sulfuric acid, which has enabled us to combine the ecological aspect of synthesis and the effectiveness of the catalyst in this kind of reaction. Structural [infrared (IR), proton and carbon nuclear magnetic resonance (1H NMR and 13C NMR)], thermal differential scanning (DSC) and chromatographic (GPC) characterization methods have allowed the products obtained to be identified and their various properties to be focused on. The kinetic study was made to determine the order of the reaction. The proposed reaction mechanism shows the advantages of Maghnite-H+.

scholarly journals Synthesis and Characterization of Polysulfone (PSU)/Philippine Halloysite (PH-HAL) Nanostructured Membrane via Electrospinning

2018 ◽  
Vol 213 ◽  
pp. 03001 ◽  
Author(s):  
Ruth R. Aquino ◽  
Marvin S. Tolentino ◽  
Niel Karl G. Arcamo ◽  
John Patrick N. Gara ◽  
Blessie A. Basilia
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Fibrous Composite ◽  
Polymeric Materials ◽  
Composite Membranes ◽  
Electrospinning Process ◽  
Synthesis And Characterization ◽  
Separation Processes ◽  
Wide Range

Membrane technology is widely used in many separation processes because of its multi-disciplinary characteristics. One of the techniques that is used in the fabrication of membranes is the electrospinning process which can create nanofibers from a very wide range of polymeric materials. In this study, electrospun nanostructured fibrous composite membranes of polysulfone (PSU), commercial halloysite (COM-HAL), and Philippine halloysite (PH-HAL) were synthesized. The concentrations of COM-HAL and PH-HAL were both varied from 0.5%, 1%, and 2%. The FTIR results showed that there were changes in the intensity of the PSU-IR spectra which confirmed the presence of COM-HAL and PH-HAL in the synthesized membranes. The SEM revealed that nanofibers can be successfully produced by the addition of LiCl salt in PSU with varying HAL concentrations. Also, it was observed that the addition of HAL with varying concentrations have no significant effect on wettability due to the strong hydrophobic character of the PSU membrane. Moreover, it was found from the analysis of mechanical properties that the tensile strength of the membranes weakened by the addition of HAL due to its weak interaction with PSU.

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