Polymerization of beta-butyrolactone by the pruitt-baggett catalyst

Download
047408.pdf
1995
Al-talafha, Mohammad
Show full item record
64
views
0
downloads
https://hdl.handle.net/11511/8954
Graduate School of Natural and Applied Sciences, Thesis

Suggestions

POLYMERIZATION OF BIS(2-BROMO-4,6-DICHLOROPHENOXO)BIS(PYRIDINE) COPPER (II) COMPLEX IN DMF BY ELECTROINITIATION
KISAKUREK, D; SEN, S; ARAS, L; TURKER, L; Toppare, Levent Kamil (Elsevier BV, 1991-01-01)
Polymerization of bis(2-bromo-4,6-dichlorophenoxo)bis(pyridine) copper (II) complex was achieved in dimethylformamide by electrooxidation. A cyclic voltammogram (CV) of the complex was obtained in dimethylformamide in advance. Constant potential yielded polymers in anode compartment only under nitrogen atmosphere and air. In the final polymer product, incorporation of neither the ligand nor the copper was observed and the post-polymerization proceeded in the absence of current. The structural analyses o...
Polymerization of propylene oxide by the Pruitt-Baggett catalyst
Çolak, Nureddin; Alyürük, Kemal (Elsevier BV, 1989-9)
The Pruitt-Baggett adduct (PBA) which formed from the reaction of FeCl3 with propylene oxide (PO) was hydrolysed in diethyl ether (ether) solutions at different mole ratios. Although the hydrolysates were insoluble in ether they could be converted into PO-soluble form (PBC) by a thermal treatment providing that the r value was kept smaller or equal to unity. PBC polymerized PO concurrently into a mixture of high molecular weight crystalline polymer with low molecular weight non-crystallizable oligomers. Th...
Polymerization of 2,4,6 trichlorophenol by microwave initiation
Okyay, Özden; Kısakürek, Duygu; Department of Chemistry (2006)
Polymerization reaction is carried out by the reaction of 2,4,6 trichlorophenol with sodium hydroxide, in the presence of small amount of water by microwave initiation. Synthesis of polymers were successfully performed under microwave enegy. The use of microwave energy was due to advantages of shorter processing time. The main focus of attention was the 90 to 600 watt microwave energy. Polymerizations were performed with different time intervals by keeping the microwave energy and water content constant; or...
POLYMERIZATION OF NORMAL-BUTYL ISOCYANATE BY PRUITT-BAGGETT ADDUCT
YILMAZ, O; Usanmaz, Ali; ALYURUK, K (Wiley, 1990-10-01)
POLYMERIZATION OF MONOISOCYANATES BY THE PRUITT-BAGGETT ADDUCT
YILMAZ, O; Usanmaz, Ali; ALYURUK, K (Wiley, 1993-12-01)
n-Butyl isocyanate (nBIC) was polymerized in bulk by the Pruitt-Baggett adduct (PBA) at -23, 0.0, and 25.0-degrees-C. Polymerization was accompanied by trimerization to the cyclic isocyanurates at all temperatures. Spectroscopic evidences supported the nylon-1 structure for both trimer and polymer. The polymer /trimer ratio and the molecular weight of produced polymers were found to increase with decreasing temperature. The Pruitt-Baggett catalyst (PBC), which is the reaction product of (PBA + H2O) system, ...
Citation Formats
M. Al-talafha, “Polymerization of beta-butyrolactone by the pruitt-baggett catalyst,” Middle East Technical University, 1995.
METU IIS - Integrated Information Service open@metu.edu.tr