Relation between Molecular Weight Distribution and Refining Process of Crude Polyether Polyol Obtained From Propylene Oxide.
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چکیده
منابع مشابه
from historical facts to geo-political realities: relation between turkey and armenia ( 1915 – 2010)
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15 صفحه اولCompositional Analysis of the High Molecular Weight Ethylene Oxide Propylene Oxide Copolymer by MALDI Mass Spectrometry
The composition of narrow distribution poly ethylene oxide-propylene oxide copolymer (Mw ~ 8700 Da) was studied using matrix assisted laser desorption ionization (MALDI) mass spectrometry. The ethylene oxide-propylene oxide copolymer produced oligomers separated by 14 Da. The average resolving power over the entire spectrum was 28,000. Approximately 448 isotopically resolved peaks representing ...
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Although a vast amount of research has been dedicated to investigate the Hofmeister effect on the stability of polymer solutions, a clear understanding of the role of polymer properties in this phenomenon is still missing. Here, the Hofmeister effect of NaCl (destabilizing) and NaSCN (stabilizing) salts on aqueous solutions of poly(propylene oxide) (PPO) is studied. Four different molecular wei...
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Synthesis of a New Mannich Polyether Polyol with Isocyanuric Structure
IOLANDA ROTARU 1*, MIHAIL IONESCU 2, DAN DONESCU 3,MIRCEA VULUGA 4 1 S.C.Zentiva S.A.,50 Theodor Pallady Bvd., 032266 Bucharest, Romania 2 Pittsburg State University, Kansas Polymer Research Center, 1501 South Joplin, Pittsburg, Kansas, 66762, USA 3 National Institute of Chemical Research, 202 Spaiul Independentei,060021, Bucharest, Romania 4 Centre for Organic Chemistry “Costin D. Nenitescu” R...
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ژورنال
عنوان ژورنال: NIPPON KAGAKU KAISHI
سال: 1993
ISSN: 2185-0925,0369-4577
DOI: 10.1246/nikkashi.1993.1085