scholarly journals Transport Properties of a High Molecular Weight Poly(propylene oxide)‐ LiCF3 SO 3 System

1999 ◽  
Vol 146 (6) ◽  
pp. 2024-2028 ◽  
Author(s):  
Marca M. Doeff ◽  
Peter Georèn ◽  
Jun Qiao ◽  
John Kerr ◽  
L. C. De Jonghe
Keyword(s):  
Molecular Weight ◽  
Transport Properties ◽  
High Molecular Weight ◽  
Propylene Oxide ◽  
Poly Propylene ◽  
High Molecular Weight Poly

Aluminum porphyrin complexes via delicate ligand design: emerging efficient catalysts for high molecular weight poly(propylene carbonate)

RSC Advances ◽  
2014 ◽  
Vol 4 (96) ◽  
pp. 54043-54050 ◽  
Author(s):  
Xingfeng Sheng ◽  
Yong Wang ◽  
Yusheng Qin ◽  
Xianhong Wang ◽  
Fosong Wang
Keyword(s):  
Carbon Dioxide ◽  
Molecular Weight ◽  
High Molecular Weight ◽  
Propylene Carbonate ◽  
Propylene Oxide ◽  
Ligand Design ◽  
Poly Propylene ◽  
High Molecular Weight Poly

Due to the deep concern over residual, toxic cobalt or chromium, bifunctional aluminum porphyrin complexes were prepared to catalyze the copolymerization of propylene oxide and carbon dioxide.

Synthesis and stabilization of high-molecular-weight poly(propylene carbonate) from ZnCo-based double metal cyanide catalyst

2011 ◽  
Vol 47 (11) ◽  
pp. 2152-2157 ◽  
Author(s):  
Zhifeng Li ◽  
Yusheng Qin ◽  
Xiaojiang Zhao ◽  
Fosong Wang ◽  
Suobo Zhang ◽  
...  
Keyword(s):  
Molecular Weight ◽  
High Molecular Weight ◽  
Propylene Carbonate ◽  
Metal Cyanide ◽  
Poly Propylene ◽  
High Molecular Weight Poly

Phase Separation in Al2O3 Sol-gel System Incorporated with High Molecular Weight Poly(ethylene oxide)

2007 ◽  
Vol 1007 ◽  
Author(s):  
Yasuaki Tokudome ◽  
Kazuki Nakanishi ◽  
Koji Fujita ◽  
Kiyotaka Miura ◽  
Kazuyuki Hirao
Keyword(s):  
Molecular Weight ◽  
Phase Separation ◽  
Ethylene Oxide ◽  
High Molecular Weight ◽  
Propylene Oxide ◽  
Bet Surface Area ◽  
Pure Alumina ◽  
Poly Ethylene Oxide ◽  
Poly Ethylene ◽  
High Molecular Weight Poly

ABSTRACTPure alumina monoliths with well-defined macropores and mesostructured skeleton have been synthesized via a spontaneous route from the aqueous and ethanolic solution of aluminum salts in the presence of propylene oxide and high molecular weight poly(ethylene oxide)(PEO). The addition of propylene oxide to the starting solution controls the gelation, while the addition of PEO induces the phase separation. Appropriate choice of the starting composition, with which the phase separation and gelation concur, produces large-dimension (10mm×10mm×10mm), bicontinuous macroporous Al2O3 monoliths. The mean size of the continuously connected pores is controlled in the micrometer range, depending on the PEO concentration and polarity of the solution. On the other hand, micropores and mesopores, originated from the interstices among primary particles, exhibit median pore size of about 2.6 nm and the BET surface area as high as 396 m2/g after dried temperature at 40 °C.

Double propagation based on diepoxide, a facile route to high molecular weight poly(propylene carbonate)

Polymer ◽  
2006 ◽  
Vol 47 (21) ◽  
pp. 7368-7373 ◽  
Author(s):  
Youhua Tao ◽  
Xianhong Wang ◽  
Xiaojiang Zhao ◽  
Ji Li ◽  
Fosong Wang
Keyword(s):  
Molecular Weight ◽  
High Molecular Weight ◽  
Propylene Carbonate ◽  
Poly Propylene ◽  
Facile Route ◽  
High Molecular Weight Poly

Access to Ultra-High Molecular Weight Poly(propylene glycol)-Based Polyols Using Double Metal Cyanide Catalyst

2019 ◽  
Vol 28 (1) ◽  
pp. 82-85
Author(s):  
Eun Hye Jang ◽  
Sun A Kim ◽  
Hoan Kim ◽  
Chinh Hoang Tran ◽  
Hyeong Yong Song ◽  
...  
Keyword(s):  
Molecular Weight ◽  
High Molecular Weight ◽  
Propylene Glycol ◽  
Metal Cyanide ◽  
Poly Propylene ◽  
Ultra High Molecular Weight ◽  
High Molecular Weight Poly
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