Results 251 to 260 of about 46,542 (308)
Some of the next articles are maybe not open access.
Polymer Bulletin, 1990
Poly(n-propyl methacrylate) is known to be immiscible with poly(methyl methacrylate) (PMMA). However, we have found that poly(methoxymethyl methacrylate) is miscible with PMMA, indicating the importance of ether oxygen atoms in achieving miscibility. On the other hand, poly(methylthiomethyl methacrylate) is immiscible with PMMA.
Goh, S.H., Lee, S.Y.
openaire +1 more source
Poly(n-propyl methacrylate) is known to be immiscible with poly(methyl methacrylate) (PMMA). However, we have found that poly(methoxymethyl methacrylate) is miscible with PMMA, indicating the importance of ether oxygen atoms in achieving miscibility. On the other hand, poly(methylthiomethyl methacrylate) is immiscible with PMMA.
Goh, S.H., Lee, S.Y.
openaire +1 more source
The transport of methyl methacrylate monomer in poly(methyl methacrylate)
Journal of Applied Polymer Science, 1975The absorption kinetics and equlibria of methyl methacrylate monomer into poly(methyl methacrylate) were studied over a range of penetrant activities. The interval sorption kinetics at elevated activities were determined, compared, and contrasted with the integral sorption experiments in previously unpenetrated film samples.
H. B. Hopfenberg +2 more
openaire +1 more source
Association of Stereoregular Poly(methyl methacrylates)
International Journal of Polymeric Materials, 1976Isotactic and syndiotactic poly(methyl methacrylate) (i-and s-PMMA) form stereocomplexes in suitable solvents.
CHALLA, G, DEBOER, A, TAN, YY
openaire +2 more sources
Photodegradation of blends of poly(methyl methacrylate) and poly(styrene-co-methyl methacrylate)
Polymer Degradation and Stability, 1992Abstract The photodegradation of blends of poly(methyl methacrylate) (PMMA) and poly(styrene-co-methyl methacrylate) (poly(St-co-MMA)) was studied using ultraviolet and Fourier-transform infrared (FTIR) spectroscopy and viscosity measurements. PMMA-poly(St-co-MMA) blends give macroscopically transparent films. The rate of formation of the oxygenated
Ayako Torikai +2 more
openaire +1 more source
Journal of Polymer Science Part B: Polymer Physics, 1998
Compatibilization of blends of polybutadiene and poly(methyl methacrylate) with butadiene-methyl methacrylate diblock copolymers has been investigated by transmission electron microscopy. When the diblock copolymers are added to the blends, the size of PB particles decreases and their size distribution gets narrower.
Hanying Zhao, Baotong Huang
openaire +1 more source
Compatibilization of blends of polybutadiene and poly(methyl methacrylate) with butadiene-methyl methacrylate diblock copolymers has been investigated by transmission electron microscopy. When the diblock copolymers are added to the blends, the size of PB particles decreases and their size distribution gets narrower.
Hanying Zhao, Baotong Huang
openaire +1 more source
Macromolecules, 1992
In view of recent observations of stereocomplexation processes in mixed monolayers of isotactic and syndiotactic poly(methyl methacrylate) (i-PMMA and s-PMMA) monolayers of mixtures of isotactic PMMA and syndiotactic poly(isobutyl methacrylate) (s-PiBMA) were studied in search of an alternative system exhibiting stereocomplexation at the air-water ...
Brinkhuis, R.H.G., Schouten, A.J.
openaire +2 more sources
In view of recent observations of stereocomplexation processes in mixed monolayers of isotactic and syndiotactic poly(methyl methacrylate) (i-PMMA and s-PMMA) monolayers of mixtures of isotactic PMMA and syndiotactic poly(isobutyl methacrylate) (s-PiBMA) were studied in search of an alternative system exhibiting stereocomplexation at the air-water ...
Brinkhuis, R.H.G., Schouten, A.J.
openaire +2 more sources
Poly (ethyl methacrylate) by XPS
Surface Science Spectra, 1992XPS measurements for poly (ethyl methacrylate). The data include the valence band region and the principal core levels.
J. F. Moulder +2 more
openaire +1 more source
The structure of poly(methyl methacrylate)
Journal of Polymer Science: Polymer Letters Edition, 1978n this short communication the authors discuss the molecular structure of isotactic PMMA in the light of recently published statement by Japanese researchers that this structure consists of two essentially trans-chains forming a double helix. A brief argument against this state is concluded with an opinion that the structure of isotactic PMMA should be
V. M. Coiro +3 more
openaire +1 more source
The initiation of polymerization of methyl methacrylate by the poly(methyl methacrylate) anion
Journal of Polymer Science, 1960AbstractAddition of methyl methacrylate monomer to poly(methyl methacrylate) which has been polymerized with fluorenyllithium or sodium‐naphthalene in tetrahydrofuran at −78°C. produces high conversion of monomer to polymer. By a comparison of the number‐average molecular weights before and after the addition of the second monomer, it is demonstrated ...
Roger K. Graham +2 more
openaire +1 more source
Nanoindentation of Poly (Methyl Methacrylate)
MRS Proceedings, 2000ABSTRACTFor the indentation of an elastic-plastic homogeneous half-space with a pyramidal indenter, the load theoretically increases with the square of the total penetration depth. Experimental data are presented in the current paper that demonstrate the validity of this relationship for an organic polymer and a Berkovich indenter, provided that ...
Michael J. Adams +2 more
openaire +1 more source