All acrylic block copolymers based on poly (methyl methacrylate) and poly (butyl acrylate). A link between the physico-chemical properties and the mechanical behaviour on impact tests

2008 ◽  
Vol 27 (8) ◽  
pp. 945-950 ◽  
Author(s):  
Tuan Anh Tran ◽  
Frédéric Leonardi ◽  
Sylvain Bourrigaud ◽  
Pierre Gerard ◽  
Christophe Derail
Keyword(s):  
Block Copolymers ◽  
Methyl Methacrylate ◽  
Mechanical Behaviour ◽  
Butyl Acrylate ◽  
Chemical Properties ◽  
Poly Methyl Methacrylate ◽  
Impact Tests ◽  
Physico Chemical

A Novel Polyaniline Nanocomposite with Doping Effects of Poly(Methyl Methacrylate) and TiO2 Nanoparticles

2016 ◽  
Vol 44 ◽  
pp. 281-292 ◽  
Author(s):  
Unathi Sidwaba ◽  
Usisipho Feleni ◽  
Hlamulo Makelane ◽  
Ezo Nxusani ◽  
Lindsay Wilson ◽  
...  
Keyword(s):  
Methyl Methacrylate ◽  
Titanium Dioxide Nanoparticles ◽  
Conductive Polymer ◽  
Chemical Properties ◽  
Poly Methyl Methacrylate ◽  
Wave Voltammetry ◽  
Physico Chemical ◽  
Doping Effects ◽  
Vis Spectroscopy ◽  
Polyaniline Nanocomposite

Polyaniline (PANI) is a globally investigated conductive polymer with a variety of applications in various fields due to its ease of synthesis and modification. One method of enhancing the physico-chemical properties and processability of PANI is the incorporation of polymers and nanoparticles to form composite and hybrid materials with new features. This study reports the electrochemical synthesis of a polyaniline nanocomposite that incorporates titanium dioxide nanoparticles (TiO2) and poly (methyl methacrylate) (PMMA). The significant effects of PMMA and TiO2 nanoparticles on structural, morphological, optical and electrochemical properties of native polyaniline were investigated using Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), energy dispersive X-ray (EDX) spectroscopy, ultraviolet-visible (UV-Vis) spectroscopy, cyclic voltammetry (CV) and square wave voltammetry (SWV). The formation and deformation of relevant peaks observed from the FTIR spectra confirm the intrusion of PMMA and TiO2 into PANI while the voltammetric results show that the incorporation of both dopants significantly enhanced the electroactivity of PANI in a neutral pH medium.

Multisegmented Block Copolymers by 'Click' Coupling of Polymers Prepared by ATRP

2007 ◽  
Vol 60 (6) ◽  
pp. 400 ◽  
Author(s):  
Patricia L. Golas ◽  
Nicolay V. Tsarevsky ◽  
Brent S. Sumerlin ◽  
Lynn M. Walker ◽  
Krzysztof Matyjaszewski
Keyword(s):  
Molecular Weight ◽  
Block Copolymers ◽  
Methyl Methacrylate ◽  
Butyl Acrylate ◽  
Click Reaction ◽  
Size Exclusion ◽  
Scanning Calorimetry ◽  
Poly Methyl Methacrylate ◽  
Propargyl Ether ◽  
Click Coupling

Multisegmented block copolymers were prepared by the step-growth click coupling of well-defined block copolymers synthesized by atom transfer radical polymerization (ATRP). α,ω-Diazido-terminated polystyrene-block-poly(ethylene oxide)-block-polystyrene was coupled with propargyl ether in N,N-dimethylformamide in the presence of a CuBr/N,N,N´,N´´,N´´-pentamethyldiethylenetriamine catalyst. The preparation of multisegmented block copolymers was also demonstrated by the click coupling of propargyl ether with another diazido-terminated triblock copolymer, poly(n-butyl acrylate)-block-poly(methyl methacrylate)-block-poly(n-butyl acrylate), and a diazido-terminated pentablock copolymer, polystyrene-block-poly(n-butyl acrylate)-block-poly(methyl methacrylate)-block-poly(n-butyl acrylate)-block-polystyrene. The formation of a product of higher molecular weight and broader molecular weight distribution was verified by triple-detection size exclusion chromatography, which revealed that typically five to seven block copolymers were linked together during the click reaction. Differential scanning calorimetry and dynamic mechanical analysis revealed that the amphiphilic block copolymer behaves as a viscoelastic fluid, while its corresponding multiblock copolymer is an elastic material. The multisegmented block copolymers with partially miscible segments exhibit higher glass transition temperatures than their precursors.

Synthesis, Characterization, and Properties of Starlike Poly(n-butyl acrylate)-b-poly(methyl methacrylate) Block Copolymers

2010 ◽  
Vol 43 (3) ◽  
pp. 1227-1235 ◽  
Author(s):  
Alper Nese ◽  
Jaroslav Mosnác̆ek ◽  
Azhar Juhari ◽  
Jeong Ae Yoon ◽  
Kaloian Koynov ◽  
...  
Keyword(s):  
Block Copolymers ◽  
Methyl Methacrylate ◽  
Butyl Acrylate ◽  
Poly Methyl Methacrylate

scholarly journals Synthesis and Conductivity Studies of Poly(Methyl Methacrylate) (PMMA) by Co-Polymerization and Blending with Polyaniline (PANi)

Polymers ◽  
2021 ◽  
Vol 13 (12) ◽  
pp. 1939
Author(s):  
Helyati Abu Hassan Shaari ◽  
Muhammad Mahyiddin Ramli ◽  
Mohd Nazim Mohtar ◽  
Norizah Abdul Rahman ◽  
Azizan Ahmad
Keyword(s):  
Methyl Methacrylate ◽  
Mechanical Stability ◽  
Chemical Properties ◽  
Cost Effective ◽  
Poly Methyl Methacrylate ◽  
Conducting Materials ◽  
Potential Applications ◽  
Polymerization Condition ◽  
Physical And Chemical ◽  
And Chemical Properties

Poly(methyl methacrylate) (PMMA) is a lightweight insulating polymer that possesses good mechanical stability. On the other hand, polyaniline (PANi) is one of the most favorable conducting materials to be used, as it is easily synthesized, cost-effective, and has good conductivity. However, most organic solvents have restricted potential applications due to poor mechanical properties and dispersibility. Compared to PANi, PMMA has more outstanding physical and chemical properties, such as good dimensional stability and better molecular interactions between the monomers. To date, many research studies have focused on incorporating PANi into PMMA. In this review, the properties and suitability of PANi as a conducting material are briefly reviewed. The major parts of this paper reviewed different approaches to incorporating PANi into PMMA, as well as evaluating the modifications to improve its conductivity. Finally, the polymerization condition to prepare PMMA/PANi copolymer to improve its conductivity is also discussed.

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