It is also of importance as its monomer, 4-methyl- 2-pentyne, can be easily derived from commercial compounds, 4-methyl-2-pentene or methyl isobutyl ketone, produced on a large scale. It is known that PMP exists in cis and trans configurations. Synthetic conditions, e.g., the used ...
ComparingPenetrants Transport in Composite Poly (4-methyl-2-pentyne) and Nanoparticlesof Cristobalite Silica and Faujasite Silica through Molecular DynamicsSimulation.ComparingPenetrants Transport in Composite Poly (4-methyl-2-pentyne) and Nanoparticlesof Cristobalite Silica and Faujasite Silica through Molecul...
Poly Methyl penteneCO2separationCarbon dioxide (CO2) generally exists as the main impurity in natural gas, whose main component is methane. The presence of CO2reduces the energy content of natural gas and also causes the corrosion of pipelines. To prevent such problems, natural gas must contain ...
There are intriguing reports on beneficial separation characteristics of adding fumed silica particles to high free volume polymers like poly(4-methyl-2-pentyne) (PMP) or poly(2,2-bis(trifluoromethyl)-4,5-difluoro-1,3-dioxole-co-tetrafluoroethylene) [15], [16], [17], [18], [19], [...
Representative examples of such 1-alkyne compounds include 1-propyne; 1-butyne; 1-pentyne; 1-hexyne; 1-octyne; 1-decyne, 1-dodecyne; 1-hexadecyne; 1-octadecyne; 3-methyl-1-butyne; 3-methyl-1-pentyne; 3-ethyl-1-pentyne; 3-propyl-6-methyl-1-heptyne; 3-cyclopentyl-1-propyne; etc...
poly[1-(trimethylgermyl)-1-propyne)] [poly(TMGP)] [3] and poly(4-methyl-2-pentyne) [poly(MP)] [4], also have very high oxygen permeability values, 1800 and 2700 barrers, respectively. Furthermore, the concept that a stiff main chain and bulky side-groups are both essential for a...
Synthesis of liquid crystalline poly(1﹑entyne)s and fabrication of polyacetylene–perovskite hybrids Poly(1-pentyne)s containing biphenyl and phthalimido pendant groups with different spacer lengths {P 1 ( m ); [HCC(CH2)3OBiphOCO(CH2) m N(CO)2C6H4] n , Bip... J Hua,JWY Lam,L Zh...
one carbon-carbon triple bond in its structure, and is preferably a C2-C10alkynyl group, more preferably a C2-C6alkynyl group, most preferably a C2-C4alkynyl group. These alkynyl groups include, for example, ethyne, 1-propyne, 2-propyne, isopropyne, butyne, isobutyne, pentyne, and hexyne...
Employing the procedure described in Example I, 0.196 moles of 3-hydroxy-3-methyl-1-pentyne (20.0 g, 99.9% purity, pH of 7.0) was reacted with a hydrosiloxane having the nominal formula Me3SiO-(Me2SiO)4(MeHSiO)2.8 SiMe3(0.194 equivalents of SiH, 42.6 g, 102 cc/g SiH, 4.2 cst...
Morisato, Nanostructured poly(4-methy-2-pentyne)-silica hybrid membranes for gas separation, Desalination 146 (2002) 11.He Z,Pinnau I,Morisato A.Nanostructured poly (4-methyl-2-pentyne)/silica hybrid membranes for gas separation. Desalination . 2002...