Results 41 to 50 of about 702,080 (289)

Polyethers for biomedical applications. Polymerization of propylene oxide by organozinc/organotin catalysts [PDF]

open access: yes, 1987
The polymerization of propylene oxide to obtain a high-molecular-weight polymer with an atactic structure required for the application as artificial blood vessels was investigated using combinations of organozinc and organotin compounds as catalyst.
Bantjes, Adriaan   +3 more
core   +2 more sources

Morphology and properties evolution upon ring-opening polymerization during extrusion of cyclic butylene terephthalate and graphene-related-materials into thermally conductive nanocomposites [PDF]

open access: yes, 2017
In this work, the study of thermal conductivity before and after in-situ ring-opening polymerization of cyclic butylene terephthalate into poly (butylene terephthalate) in presence of graphene-related materials (GRM) is addressed, to gain insight in the ...
Colonna, S.   +4 more
core   +2 more sources

Estimation of pyrolysis product of LDPE degradation using different process parameters in a stirred reactor [PDF]

open access: yesPolyolefins Journal, 2015
Pyrolysis of low density polyethylene (LDPE) by equilibrium fluid catalytic cracking (FCC) was studied in a stirred reactor under different process parameters.
Mehrdad Seifali Abbas-Abadi   +3 more
doaj   +1 more source

Compositional Determination of Vinyl Acetate/Vinyl Benzoate Copolymer by Fourier Transform Infrared Spectroscopy [PDF]

open access: yesعلوم و تکنولوژی پلیمر, 2015
Relating polymer structure to its performance properties is a primary motivation for determining the structure of a polymer chain. If a polymer chain is completely characterized and the structural basis of its properties is known, one can optimize and ...
Poorya Bigdeli   +2 more
doaj   +1 more source

Soft Listeria: actin-based propulsion of liquid drops [PDF]

open access: yes, 2003
We study the motion of oil drops propelled by actin polymerization in cell extracts. Drops deform and acquire a pear-like shape under the action of the elastic stresses exerted by the actin comet.
A. Mogilner   +14 more
core   +2 more sources

Uni-directional polymerization leading to homochirality in the RNA world [PDF]

open access: yes, 2005
The differences between uni-directional and bi-directional polymerization are considered. The uni-directional case is discussed in the framework of the RNA world. Similar to earlier models of this type, where polymerization was assumed to proceed in a bi-
Andersen, A. C.   +3 more
core   +2 more sources

Online monitoring of vinyl chloride polymerization in a microreactor using raman spectroscopy [PDF]

open access: yes, 2012
A novel capillary-based microfluidic device has been designed to follow the vinyl chloride polymerization reaction. The use of a co-flow generation system enabled obtaining monodisperse vinyl chloride droplets within 200 µm in diameter, each one being ...
Bally   +21 more
core   +4 more sources

Interfacial chemical oxidative synthesis of multifunctional polyfluoranthene. [PDF]

open access: yes, 2015
A novel polyfluoranthene (PFA) exhibiting strong visual fluorescence emission, a highly amplified quenching effect, and widely controllable electrical conductivity is synthesized by the direct cationic oxidative polymerization of fluoranthene in a ...
Huang, Mei-Rong   +3 more
core   +1 more source

Role of heat generation and thermal diffusion during frontal photopolymerization [PDF]

open access: yes, 2015
Frontal photopolymerization (FPP) is a rapid and versatile solidification process that can be used to fabricate complex three-dimensional structures by selectively exposing a photosensitive monomer-rich bath to light.
Cabral, JT   +3 more
core   +3 more sources

Thermal bulk polymerization of cholesteryl acrylate [PDF]

open access: yes, 1971
The thermal bulk polymerization of cholesteryl acrylate was carried out in the solid phase, the mesomorphic phase, and the liquid phase to study the effect of monomer ordering on polymerization rate and polymer properties.
Bantjes, A.   +3 more
core   +2 more sources

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