scholarly journals Composites of Reactive Silica Nanoparticles and Poly(glycidyl methacrylate) with Linear and Crosslinked Chains by in situ Bulk Polymerization

2010 ◽  
Vol 17 (9) ◽  
pp. 831-844 ◽  
Author(s):  
Mustafa M. Demir ◽  
Burcu Altın ◽  
Serdar Özçelik
Keyword(s):  
Silica Nanoparticles ◽  
Glycidyl Methacrylate ◽  
Bulk Polymerization ◽  
Reactive Silica

Functionalization of polypropylene and compatibilization of polypropylene/nylon 6 blends with copolymers containing α-methyl styrene units

e-Polymers ◽  
2010 ◽  
Vol 10 (1) ◽  
Author(s):  
Shu-jun Liang ◽  
Wan-tai Yang
Keyword(s):  
Block Copolymers ◽  
Glycidyl Methacrylate ◽  
Nylon 6 ◽  
Bulk Polymerization ◽  
Molten State ◽  
In Situ Compatibilization ◽  
Ft Ir ◽  
Methyl Styrene ◽  
Compatibilizing Effect

AbstractIn our earlier works, a new and viable strategy for bulk polymerization of methyl methacrylate (MMA) and styrene (St) with copolymers of poly(AMS-co- GMA) (PAG) of α-methyl styrene (AMS) and glycidyl methacrylate (GMA) has been reported. Herein, we report on the achievements of the compatibilization of the blend system of polypropylene (PP) and Nylon 6 (Ny6) and the functionalization of PP with PAG. The graft reactions of PAG onto PP in solution and molten state were investigated respectively, and the functionalized production was confirmed by the FT-IR spectra. Through SEM, the in-situ compatibilization of PP/Ny6 blends with PAG was observed. And the block copolymers of PP-b-PAG-b-Ny6 in the blends were characterized by FT-IR, which confirmed the “compatibilizing effect” of PAG in the blend system.

Nitroxide-Mediated Polymerization of Styrene Initiated from the Surface of Silica Nanoparticles. In Situ Generation and Grafting of Alkoxyamine Initiators

2005 ◽  
Vol 38 (4) ◽  
pp. 1099-1106 ◽  
Author(s):  
C. Bartholome ◽  
E. Beyou ◽  
E. Bourgeat-Lami ◽  
P. Chaumont ◽  
F. Lefebvre ◽  
...  
Keyword(s):  
Silica Nanoparticles ◽  
In Situ Generation ◽  
Nitroxide Mediated Polymerization

TiCp2Cl-Catalyzed Living Radical and Ring Opening Polymerizations Initiated from Epoxides and Aldehydes in the Synthesis of Linear, Graft and Branched Polymers

2004 ◽  
Vol 856 ◽  
Author(s):  
Alexandru D. Asandei ◽  
Isaac W. Moran ◽  
Gobinda Saha ◽  
Yanhui Chen
Keyword(s):  
Electron Transfer ◽  
Ring Opening ◽  
Glycidyl Methacrylate ◽  
Ring Opening Polymerization ◽  
Branched Polymers ◽  
Single Electron Transfer ◽  
Radical Ring ◽  
Polymer Architectures ◽  
Complex Polymer

ABSTRACTTi(III)Cp2Cl-catalyzed radical ring opening (RRO) of epoxides or single electron transfer (SET) reduction of aldehydes generates Ti alkoxides and carbon centered radicals which add to styrene, initiating a radical polymerization. This polymerization is mediate in a living fashion by the reversible termination of growing chains with the TiCp2Cl metalloradical. In addition, polymers or monomers containing pendant epoxide groups (glycidyl methacrylate) can be used as substrates for radical grafting or branching reactions by self condensing vinyl polymerization. In addition, Ti alkoxides generated in situ by both epoxide RRO and aldehyde SET initiate the living ring opening polymerization of ε-caprolactone. Thus, new initiators and catalysts are introduced for the synthesis of complex polymer architectures.

The disorderly exfoliated LDHs/PMMA nanocomposite synthesized by in situ bulk polymerization

Polymer ◽  
2005 ◽  
Vol 46 (14) ◽  
pp. 5065-5074 ◽  
Author(s):  
Guo-An Wang ◽  
Cheng-Chien Wang ◽  
Chuh-Yung Chen
Keyword(s):  
Bulk Polymerization

Multi-stable fluorescent silica nanoparticles obtained from in situ doping with aggregation-induced emission molecules

2015 ◽  
Vol 3 (45) ◽  
pp. 8775-8781 ◽  
Author(s):  
Yi-Feng Wang ◽  
Jing Che ◽  
Yong-Chao Zheng ◽  
Yuan-Yuan Zhao ◽  
Fei Chen ◽  
...  
Keyword(s):  
Silica Nanoparticles ◽  
Gastric Fluid ◽  
Silica Matrix ◽  
Simulated Gastric Fluid ◽  
Aggregation Induced Emission ◽  
Fluorescent Silica Nanoparticles ◽  
Photo Stability

Rigid structures provided by silica matrix restrict the intramolecular rotations of AIE molecules, and fluorescence of CWQ-11@SiO2 nanoparticles maintains excellent pH-, viscosity- and photo-stability, especially stable in simulated gastric fluid.

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