Results 101 to 110 of about 808 (131)
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Wear, 1977
Abstract A comparative study was made of the friction and wear properties of homopolymers and copolymers (with methyl methacrylate (MMA)) of methyl α-n-hexadecylacrylate (MHDA), methyl α-n-octadecylacrylate (MODA) and n-octadecyl methacrylate (ODMA). In the first two compounds the long alkyl side chain is attached to the polymer backbone, whereas in ...
H.E. Mertwoy +3 more
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Abstract A comparative study was made of the friction and wear properties of homopolymers and copolymers (with methyl methacrylate (MMA)) of methyl α-n-hexadecylacrylate (MHDA), methyl α-n-octadecylacrylate (MODA) and n-octadecyl methacrylate (ODMA). In the first two compounds the long alkyl side chain is attached to the polymer backbone, whereas in ...
H.E. Mertwoy +3 more
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Journal of Polymer Science Part A-1: Polymer Chemistry, 1969
AbstractOctadecyl methacrylate (mpc ≈ 12°C.) polymerized readily in the solid state in the temperature range −30 to +12°C. after gamma irradiation at −196°C. The initial rate of polymerization and the “limiting” conversion increased with radiation dose and temperature.
M. J. Bowden, J. H. O'Donnell
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AbstractOctadecyl methacrylate (mpc ≈ 12°C.) polymerized readily in the solid state in the temperature range −30 to +12°C. after gamma irradiation at −196°C. The initial rate of polymerization and the “limiting” conversion increased with radiation dose and temperature.
M. J. Bowden, J. H. O'Donnell
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Langmuir, 1996
π−A isotherms of octadecyl methacrylate (ODMA) were recorded in the range 10−42 °C to investigate the experimental parameters for LB deposition of ODMA monolayers onto hydrophilic glass substrates. In the range 10−20 °C two monolayer phase transitions were detected in the π−A isotherm.
G. Müller, C. Riedel
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π−A isotherms of octadecyl methacrylate (ODMA) were recorded in the range 10−42 °C to investigate the experimental parameters for LB deposition of ODMA monolayers onto hydrophilic glass substrates. In the range 10−20 °C two monolayer phase transitions were detected in the π−A isotherm.
G. Müller, C. Riedel
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Journal of Chromatography A, 2009
Stationary phase selectivities for halogenated compounds in reversed-phase HPLC were compared using C18 monolithic silica capillary columns modified with poly(octadecyl methacrylate) (ODM) and octadecyl moieties (ODS). The preferential retention of halogenated benzenes on ODM was observed in methanol/water and acetonitrile/water mobile phases.
Wasura, Soonthorntantikul +4 more
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Stationary phase selectivities for halogenated compounds in reversed-phase HPLC were compared using C18 monolithic silica capillary columns modified with poly(octadecyl methacrylate) (ODM) and octadecyl moieties (ODS). The preferential retention of halogenated benzenes on ODM was observed in methanol/water and acetonitrile/water mobile phases.
Wasura, Soonthorntantikul +4 more
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Journal of Polymer Science: Polymer Chemistry Edition, 1977
AbstractIn continuation of the previous series of studies, polymerization of octadecyl methacrylate (ODMA) induced by electron beams has been investigated in a form of its multilayer or monolayer in an attempt to prepare a stable thin polymer film having a regular layer structure.
Motoyoshi Hatada, Masanobu Nishii
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AbstractIn continuation of the previous series of studies, polymerization of octadecyl methacrylate (ODMA) induced by electron beams has been investigated in a form of its multilayer or monolayer in an attempt to prepare a stable thin polymer film having a regular layer structure.
Motoyoshi Hatada, Masanobu Nishii
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A study of blends of poly(n‐octadecyl methacrylate) with n‐dodecane and n‐octadecane
Die Angewandte Makromolekulare Chemie, 1989AbstractDSC and X‐ray diffraction analysis were used to study blends of poly(n‐octadecyl methacrylate) with n‐dodecane and n‐octadecane crystallized from the melt to gain a better understanding of the interaction of comb‐like polymethacrylates with paraffin waxes. In both sets of blends both components could crystallize in separate lattices.
Isaac D. Rubin, Rocco D. Pugliese
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Chinese Journal of Chromatography (Se Pu), 2015
The preparation of porous polymethacrylate-based open tubular capilary columns by in-situ copolymerization of octadecyl methacrylate (OMA), and ethylene dimethacrylate (EDMA) in N,N-dimethylformamide (DMF) solvent are proposed. The parameters of the preparation procedure of the stationary phase are discussed in detail.
Sunying Zhou +2 more
exaly +3 more sources
The preparation of porous polymethacrylate-based open tubular capilary columns by in-situ copolymerization of octadecyl methacrylate (OMA), and ethylene dimethacrylate (EDMA) in N,N-dimethylformamide (DMF) solvent are proposed. The parameters of the preparation procedure of the stationary phase are discussed in detail.
Sunying Zhou +2 more
exaly +3 more sources
Journal of Polymer Science: Polymer Chemistry Edition, 1977
AbstractThe ultraviolet‐initiated polymerization of octadecyl methacrylate (ODMA, octadecyl 2‐methyl‐2‐propenoate) as a monomolecular layer at the gas‐water interface was studied. The polymerization was carried out at 27°C at the nitrogen‐water interface; air inhibits the polymerization.
D. Naegele, H. Ringsdorf
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AbstractThe ultraviolet‐initiated polymerization of octadecyl methacrylate (ODMA, octadecyl 2‐methyl‐2‐propenoate) as a monomolecular layer at the gas‐water interface was studied. The polymerization was carried out at 27°C at the nitrogen‐water interface; air inhibits the polymerization.
D. Naegele, H. Ringsdorf
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Solution properties of poly(octadecyl methacrylate) in butyl acetate, 1. Dilute Solution
Die Makromolekulare Chemie, 1991AbstractDilute solutions of poly(octadecyl methacrylate) (PODMA) obtained by radical‐initiated polymerization were inverstigated in the theta‐solvent butyl acetate (BuAc) by static (SLS) and dynamic light scattering (DLS) and viscometry at six different temperatures between 11°C (near the theta‐temperature Θ) and 30°C.
Mathias Ricker, Manfred Schmidt
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Arabian Journal for Science and Engineering, 2018
We report simultaneous photoinitiated polymerization and stimulated Raman scattering (SRS) from polymers of methacrylate monomers using a Q-switched Nd: YAG laser (second harmonic radiation at 532 nm). The monomers used were n-butyl methacrylate and n-octadecyl methacrylate together with benzoyl peroxide as initiator, dissolved in ethanol.
Asma Batool +3 more
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We report simultaneous photoinitiated polymerization and stimulated Raman scattering (SRS) from polymers of methacrylate monomers using a Q-switched Nd: YAG laser (second harmonic radiation at 532 nm). The monomers used were n-butyl methacrylate and n-octadecyl methacrylate together with benzoyl peroxide as initiator, dissolved in ethanol.
Asma Batool +3 more
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