Surface Viscoelastic Parameters of Poly((dimethylamino)ethyl methacrylate−methyl methacrylate) Diblock Copolymer Solutions:  pH Dependence of the Evolution of the Equilibrium Values

2001 ◽  
Vol 34 (12) ◽  
pp. 4173-4179 ◽  
Author(s):  
Andrew J. Milling ◽  
Randal W. Richards ◽  
Fiona L. Baines ◽  
Steven P. Armes ◽  
Norman C. Billingham
Keyword(s):  
Methyl Methacrylate ◽  
Diblock Copolymer ◽  
Ph Dependence ◽  
Ethyl Methacrylate ◽  
Viscoelastic Parameters

Synthesis of poly(methyl methacrylate)-b-poly(acrylic acid) by DPE method

e-Polymers ◽  
2008 ◽  
Vol 8 (1) ◽  
Author(s):  
Dong Chen ◽  
Ruixue Liu ◽  
Zhifeng Fu ◽  
Yan Shi
Keyword(s):  
Molecular Weight ◽  
Acrylic Acid ◽  
Methyl Methacrylate ◽  
Diblock Copolymer ◽  
Self Assembly ◽  
Gel Permeation Chromatography ◽  
Amphiphilic Diblock Copolymer ◽  
Poly Methyl Methacrylate ◽  
Copolymer Poly ◽  
Poly Acrylic Acid

AbstractAmphiphilic diblock copolymer poly(methyl methacrylate)-b-poly(acrylic acid) (PMMA-b-PAA) was prepared by 1,1-diphenylethene (DPE) method. Firstly, free radical polymerization of methyl methacrylate was carried out with AIBN as initiator in the presence of DPE, giving a DPE-containing PMMA precursor with controlled molecular weight. tert-Butyl acrylate (tBA) was then polymerized in the presence of the PMMA precursor, and PMMA-b-PtBA diblock copolymer with controlled molecular weight was prepared. Finally, amphiphilic diblock copolymer PMMA-b-PAA was obtained by hydrolysis of PMMA-b-PtBA. The formation of PMMA-b-PAA was confirmed by 1H NMR spectrum and gel permeation chromatography. Transmission electron microscopy and dynamic light scattering were used to detect the self-assembly behavior of the amphiphilic diblock polymers in methanol.

Photopolymerization of methyl methacrylate and 2-(dimethylamino) ethyl methacrylate induced by diacetoxyiodobenzene in the presence of radical inhibitors

1991 ◽  
Vol 26 (6) ◽  
pp. 617-620 ◽  
Author(s):  
Latchezar Christov ◽  
George Georgiev ◽  
Irini Sideridou-Karayannidou ◽  
George Karayannidis ◽  
Anastasios Varvoglis
Keyword(s):  
Methyl Methacrylate ◽  
Ethyl Methacrylate

scholarly journals Hybrid Mesoporous Silica Nanoparticles Grafted with 2-(tert-butylamino)ethyl Methacrylate-b-poly(ethylene Glycol) Methyl Ether Methacrylate Diblock Brushes as Drug Nanocarrier

Molecules ◽  
2020 ◽  
Vol 25 (1) ◽  
pp. 195 ◽  
Author(s):  
Abdullah M Alswieleh ◽  
Abeer M Beagan ◽  
Bayan M Alsheheri ◽  
Khalid M Alotaibi ◽  
Mansour D Alharthi ◽  
...  
Keyword(s):  
Mesoporous Silica ◽  
Ethylene Glycol ◽  
Silica Nanoparticles ◽  
Methyl Ether ◽  
Diblock Copolymer ◽  
Mesoporous Silica Nanoparticles ◽  
Poly Ethylene Glycol ◽  
Ethyl Methacrylate ◽  
Poly Ethylene ◽  
Glycol Methyl Ether

This paper introduces the synthesis of well-defined 2-(tert-butylamino)ethyl methacrylate-b-poly(ethylene glycol) methyl ether methacrylate diblock copolymer, which has been grafted onto mesoporous silica nanoparticles (PTBAEMA-b-PEGMEMA-MSNs) via atom transfer radical polymerization (ATRP). The ATRP initiators were first attached to the MSN surfaces, followed by the ATRP of 2-(tert-butylamino)ethyl methacrylate (PTBAEMA). CuBr2/bipy and ascorbic acid were employed as the catalyst and reducing agent, respectively, to grow a second polymer, poly(ethylene glycol) methyl ether methacrylate (PEGMEMA). The surface structures of these fabricated nanomaterials were then analyzed using Fourier Transform Infrared (FTIR) spectroscopy. The results of Thermogravimetric Analysis (TGA) show that ATRP could provide a high surface grafting density for polymers. Dynamic Light Scattering (DLS) was conducted to investigate the pH-responsive behavior of the diblock copolymer chains on the nanoparticle surface. In addition, multifunctional pH-sensitive PTBAEMA-b-PEGMEMA-MSNs were loaded with doxycycline (Doxy) to study their capacities and long-circulation time.

Miscibility behavior of ternary poly(methyl methacrylate)/poly(ethyl methacrylate)/poly(p-vinylphenol) blends

1993 ◽  
Vol 26 (8) ◽  
pp. 2104-2110 ◽  
Author(s):  
J. A. Pomposo ◽  
E. Calahorra ◽  
I. Eguiazabal ◽  
M. Cortazar
Keyword(s):  
Methyl Methacrylate ◽  
Poly Methyl Methacrylate ◽  
Ethyl Methacrylate
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