scholarly journals Thermodinamics and Mutual Distribution of Macromolecules in the Systems: Chlorine Chlorocontaining Polymers

2021 ◽  
pp. 1-6
Author(s):  
Shixaliyev Kerem Seyfi ◽  
Keyword(s):  
Energy Parameter ◽  
Low Density ◽  
Polymer Mixtures ◽  
Chlorinated Polyethylene ◽  
Mixing Energy ◽  
Polar Groups ◽  
Lower Critical Temperature ◽  
Scientific Base ◽  
Compatibility Of Polymers ◽  
Mutual Distribution

In given work a scientific base compatibility of polymers, produced by industry have been studied by revealing of thermodynamically regularities of polymer mixtures. The most significant thermodynamic regularities of the mixtures of polyolefin , produced by industry and heterochained polymers have been revealed and on this base the scientific bases of their compatibility have been developed for creation of multicomponent compositional materials with given complex of operating properties. Key words: polymer-polymer mixtures, chlorinated polyethylene (CPE), polymethylmetaacrylate (PMMA), polyethylene of low density (PELD), chlorcarboxylated polyethylene of low density (CCPE) chlorinated PELD (CPE), polyvinyl chloride (PVC), criteria of compatibility, chlorination, upper and lower critical temperature, specific holding of volume, Qibbs mixing energy, parameter of solubility, distribution of macromolecules, chlorine-chlorocontaining polymers, polar groups, thermodynamically compatibility, sorbate, gas-carrier.

scholarly journals Infinite Teaching (R) In Collection and (R*) By Allegory and Conformity

2021 ◽  
pp. 29-33
Author(s):  
Ahmad hedayatpanah shaldehi ◽  
◽  
Marziyeh hedayatpanah shaldehi, shaldehi ◽  
Kolachahi Sabet Mohammad Taghi ◽  
Mohammad Saeed hedayatpanah shaldehi ◽  
...  
Keyword(s):  
Critical Temperature ◽  
Energy Parameter ◽  
Low Density ◽  
Polymer Mixtures ◽  
Chlorinated Polyethylene ◽  
Mixing Energy ◽  
Polar Groups ◽  
Lower Critical Temperature ◽  
Scientific Base ◽  
Compatibility Of Polymers

In given work a scientific base compatibility of polymers, produced by industry have been studied by revealing of thermodynamically regularities of polymer mixtures. The most significant thermodynamic regularities of the mixtures of polyolefin , produced by industry and heterochained polymers have been revealed and on this base the scientific bases of their compatibility have been developed for creation of multicomponent compositional materials with given complex of operating properties. Key words: polymer-polymer mixtures, chlorinated polyethylene (CPE), polymethylmetaacrylate (PMMA), polyethylene of low density (PELD), chlorcarboxylated polyethylene of low density (CCPE) chlorinated PELD (CPE), polyvinyl chloride (PVC), criteria of compatibility, chlorination, upper and lower critical temperature, specific holding of volume, Qibbs mixing energy, parameter of solubility, distribution of macromolecules, chlorine-chlorocontaining polymers, polar groups, thermodynamically compatibility, sorbate, gas-carrier.

scholarly journals Thermodinamics and Mutual Distribution of Macromolecules in the Systems: Chlorine Chlorocontaining Polymers

2021 ◽  
Vol 1 (1) ◽  
pp. 1-6
Author(s):  
Shixaliyev Kerem Seyfi
Keyword(s):  
Polymer Mixtures ◽  
Operating Properties ◽  
Scientific Base ◽  
Compatibility Of Polymers ◽  
Mutual Distribution

In given work a scientific base compatibility of polymers, produced by industry have been studied by revealing of thermodynamically regularities of polymer mixtures. The most significant thermodynamic regularities of the mixtures of polyolefin , produced by industry and heterochained polymers have been revealed and on this base the scientific bases of their compatibility have been developed for creation of multicomponent compositional materials with given complex of operating properties.

Phase Stability of Hydrogen-Bonded Polymer Mixtures: Application of the Quasichemical Theory

1995 ◽  
Vol 60 (11) ◽  
pp. 1830-1854
Author(s):  
Julius Pouchlý ◽  
Antonín Živný ◽  
Antonín Sikora
Keyword(s):  
Relative Size ◽  
Molecular Surface ◽  
Polymer Mixtures ◽  
Main Attention ◽  
Model Calculations ◽  
Small Deviations ◽  
Polar Groups ◽  
Energy Of Mixing ◽  
Gibbs Energy Of Mixing ◽  
Random Mixing

Expressions for the second derivative of Gibbs energy of mixing with respect to composition and/or the corresponding Flory-Huggins interaction parameter are derived using the Barker-Guggenheim quasichemical theory. The calculation is performed first for a system of compounds with a homogeneous molecular surface, then for a binary mixture of molecules the surface of which consists of various kinds of contact sites. The result is expressed in terms of "indexes of nonrandomness", the factors which characterize deviations of individual types of contact pairs from random mixing at a given composition. Main attention is paid to a mixture of substances, each of which contains a different type of polar groups and a nonpolar residue which is similar for both components. Translucent relations are obtained in two limit cases, namely for small deviations from random mixing and for small attraction between polar and nonpolar groups. The effect of the relative size of the polar groups and of the affinity to formation of various heterocontacts is illustrated using the limit relations derived, as well as by means of model calculations.

Phase Stability of Hydrogen-Bonded Polymer Mixtures. III. Spinodal Diagrams

1999 ◽  
Vol 64 (1) ◽  
pp. 31-43 ◽  
Author(s):  
Julius Pouchlý ◽  
Antonín Živný ◽  
Antonín Sikora
Keyword(s):  
Relative Content ◽  
Strong Interactions ◽  
Polar Group ◽  
Polymer Mixtures ◽  
Phase Instability ◽  
Temperature Range ◽  
Polar Groups ◽  
Boltzmann Function ◽  
Chain Lengths ◽  
Two Temperature

Relations derived on the basis of the Barker-Guggenheim quasichemical theory were used for construction of spinodal diagrams (temperature versus composition) of a mixture of two polymers in which hydrogen bonds and other strong interactions exist. A function dependence of parameters of quasichemical equilibrium, η, was proposed, which has the form of the Boltzmann function at lower temperatures, but at higher temperatures corresponds to random mixing. The spinodal diagrams were constructed for several sets of dependences of η on temperature in a wide temperature range for different chain lengths, r, or for different values of the content of polar groups in one of the polymers. According to circumstances, the phase diagram shows one or two temperature regions of phase instability or the phase instability occurs in a certain range of composition at any temperature. Though the chain length was chosen equal for both polymers, the phase diagrams are asymmetric in the sense that the critical points are shifted towards that border of the diagram which corresponds to the component with a larger relative content of the polar group. The temperature range of phase instability is strongly influenced by small changes in the relative surface area of polar groups in the molecules.

Regiospecific Side-Chain Functionalization of Linear Low-Density Polyethylene with Polar Groups

2005 ◽  
Vol 117 (39) ◽  
pp. 6568-6571 ◽  
Author(s):  
Chulsung Bae ◽  
John F. Hartwig ◽  
Hoyong Chung ◽  
Nicole K. Harris ◽  
Karen A. Switek ◽  
...  
Keyword(s):  
Low Density Polyethylene ◽  
Side Chain ◽  
Low Density ◽  
Linear Low Density Polyethylene ◽  
Polar Groups

Regiospecific Side-Chain Functionalization of Linear Low-Density Polyethylene with Polar Groups

2005 ◽  
Vol 44 (39) ◽  
pp. 6410-6413 ◽  
Author(s):  
Chulsung Bae ◽  
John F. Hartwig ◽  
Hoyong Chung ◽  
Nicole K. Harris ◽  
Karen A. Switek ◽  
...  
Keyword(s):  
Low Density Polyethylene ◽  
Side Chain ◽  
Low Density ◽  
Linear Low Density Polyethylene ◽  
Polar Groups

Synthesis of chlorinated and anhydride-modified low density polyethylene by solid-phase chlorination and grafting—improving the adhesion of a film-forming polymer

RSC Advances ◽  
2014 ◽  
Vol 4 (24) ◽  
pp. 12490-12496 ◽  
Author(s):  
Yuan Wang ◽  
Lijuan Liu ◽  
Zhao Jing ◽  
Jiruo Zhao ◽  
Ying Feng
Keyword(s):  
Maleic Anhydride ◽  
Graft Copolymerization ◽  
Solid Phase ◽  
Low Density Polyethylene ◽  
Low Density ◽  
Chlorinated Polyethylene ◽  
Film Forming

Maleic anhydride was grafted onto high chlorinated polyethylene made of low density polyethylene (LHCPE) prepared from low density polyethylene by in situ chlorinating graft copolymerization, to improve the adhesion.

Sign in / Sign up

Export Citation Format

Share Document