Enrichment of poly(methyl methacrylate) and its graft copolymer of polybutadiene on the surface of polypropylene blends

2008 ◽  
Vol 254 (6) ◽  
pp. 1763-1770 ◽  
Author(s):  
Han Jia Chen ◽  
Xu Hua Shi ◽  
Ya Fei Zhu ◽  
Yi Zhang ◽  
Jia Rui Xu
Keyword(s):  
Methyl Methacrylate ◽  
Graft Copolymer ◽  
Poly Methyl Methacrylate ◽  
Polypropylene Blends

Preparation and Properties of Chitosan Graft Copolymer Nanoparticles Using Potassium Diperiоdatоnickelate

2014 ◽  
Vol 924 ◽  
pp. 61-64
Author(s):  
Zhan Jun Liu ◽  
Ming Fei Zhao ◽  
Zhen Gang Wu ◽  
Gang Han
Keyword(s):  
Methyl Methacrylate ◽  
Graft Copolymer ◽  
Burst Release ◽  
Narrow Size Distribution ◽  
Natural Polymer ◽  
Poly Methyl Methacrylate ◽  
Transmission Electron ◽  
Covalently Linked ◽  
Process Method

Nanoparticles comprising chitosan-graft-poly (methyl methacrylate) (CS-g-PMMA) copolymer were successfully synthesized in aqueous solution by using potassium diperiоdatоnickelate (Ni (IV)) as an initiator. The nanoparticles were characterized in terms of Fourier transform infrared (FTIR), dynamic light scattering (DLS) and transmission electron microscopy (TEM). The results indicated that chitosan was covalently linked to poly (methyl methacrylate) (PMMA) and the particles were uniform, spherical and well dispersed with narrow size distribution. Paclitaxel-loaded nanoparticles were prepared and in vitro release showed that these nanoparticles provided an initial burst release followed by a slowly sustained release for more than 16 days. Therefore, this process method would be used for synthesizing natural polymer graft copolymer nanoparticles with wide prospect.

Graft polymer growth using tandem photoinduced photoinitiator-free CuAAC/ATRP

2015 ◽  
Vol 6 (6) ◽  
pp. 946-952 ◽  
Author(s):  
Sean Doran ◽  
Yusuf Yagci
Keyword(s):  
Methyl Methacrylate ◽  
Atom Transfer Radical Polymerization ◽  
Radical Polymerization ◽  
Graft Copolymer ◽  
Atom Transfer ◽  
Graft Polymer ◽  
One Pot ◽  
Poly Methyl Methacrylate

In this work, we describe the use of a one-pot, photoinduced but photoinitiator-free combined copper-catalyzed azide–alkyne cycloaddition (CuAAC) and atom-transfer radical polymerization (ATRP) protocol to provide a graft copolymer of polystyrene-g-poly(methyl methacrylate) (PS-g-PMMA) in good conversion and polydispersity.

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