Influence of Molecular Weight on Friction Force Microscopy of Polystyrene and Poly(methyl methacrylate) Films: Correlation Between Coefficient of Friction and Chain Entanglement

Langmuir ◽  
2009 ◽  
Vol 25 (4) ◽  
pp. 2217-2224 ◽  
Author(s):  
Tracie J. Whittle ◽  
Graham J. Leggett
Keyword(s):  
Molecular Weight ◽  
Methyl Methacrylate ◽  
Friction Force ◽  
Coefficient Of Friction ◽  
Friction Force Microscopy ◽  
Chain Entanglement ◽  
Poly Methyl Methacrylate ◽  
Force Microscopy

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.

Variation of periodic crazing based on polymer blends of an ultra-high and a low molecular weight poly(methyl methacrylate)

2016 ◽  
Vol 134 (1) ◽  
Author(s):  
Keishi Naito ◽  
Akiyoshi Takeno ◽  
Ryota Morifuji ◽  
Toshiaki Miyata ◽  
Minoru Miwa ◽  
...  
Keyword(s):  
Molecular Weight ◽  
Methyl Methacrylate ◽  
Polymer Blends ◽  
Low Molecular Weight ◽  
Poly Methyl Methacrylate

Initial stages of CaF2/Si(111) epitaxy investigated by friction force microscopy

2003 ◽  
Vol 532-535 ◽  
pp. 633-638 ◽  
Author(s):  
B.H. Müller ◽  
C.R. Wang ◽  
K.R. Hofmann ◽  
M. Bierkandt ◽  
C. Deiter ◽  
...  
Keyword(s):  
Friction Force ◽  
Friction Force Microscopy ◽  
Force Microscopy

Molecular weight and processing effects on the dissolution properties of thin poly(methyl methacrylate) films

2008 ◽  
Vol 85 (1) ◽  
pp. 93-99 ◽  
Author(s):  
A. Kokkinis ◽  
E.S. Valamontes ◽  
D. Goustouridis ◽  
Th. Ganetsos ◽  
K. Beltsios ◽  
...  
Keyword(s):  
Molecular Weight ◽  
Methyl Methacrylate ◽  
Poly Methyl Methacrylate ◽  
Dissolution Properties ◽  
Processing Effects
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