Conformational transition in poly(p-tert-butylstyrene)

1990-2
ALGHEZAWI, N
Küçükyavuz, Z
Küçükyavuz, S
Show full item record
Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
70
views
0
downloads
General Engineering, Polymer Science
https://hdl.handle.net/11511/51355
Journal of Polymer Science: Polymer Letters Edition
Department of Chemistry, Article

Suggestions

THERMAL POLYMERIZATION OF BIS(TRIHALOPHENOXO)COPPER(II) COMPLEXES IN EXCESS DIMETHYLFORMAMIDE AND DIMETHYL-SULFOXIDE AS LIGANDS
KISAKUREK, D; SANLI, O (1989-08-01)
Thermal decomposition of bis(trihalophenoxo)copper(II) complexes was achieved at 50°C in dimethylformamide or dimethyl sulfoxide. The resulting polymers, poly(oxydihalophenylene)s (2), were characterized by FTIR, 1H NMR and 13C NMR spectroscopy and by differential scanning calorimetry. The molecular weights were determined by the vapour pressure method. Tribrominated phenol derivatives prefer 1,4‐substitution, whereas with trichlorophenol derivatives 1,2‐and 1,4‐substitutions take place at equal rates in ei...
Polymerization and polymer characterization of n-vinylcaprolactam
Polat, Özlem; Usanmaz, Ali; Department of Polymer Science and Technology (2005)
In this study, N-vinylcaprolactam was polymerized by radiation in the solid state. The polymerization was carried out at room temperayure under vacuum and open to atmosphere respectively. The polymerization mechanism showed autoacceleration and the rate of polymerization was higher in the presence of oxygen. However the limiting conversion was 100% under vacuum conditions and 90% in the present of oxygen. This is due to the low molecular weight olgomer formation in the presence of oxygen. The polymers were ...
Polymerization and characterization of methylmethacrylate by atom transfer radical polymerization
Aran, Bengi; Usanmaz, Ali; Department of Polymer Science and Technology (2004)
In this work, methylmethacrylate, MMA was polymerized by ATRP method to obtain low molecular weight living polymers. The initiator was p-toluenesulfonylchloride and catalyst ligand complex system were CuCl-4,4̕ dimethyl 2,2̕bipyridine. Polymers with controlled molecular weight were obtained. The polymer chains were shown by NMR investigation to be mostly syndiotactic. The molecular weight and molecular weight distribution of some polymer samples were measured by GPC method. The K and a constants in [h]=K Ma...
Measurement of transport properties of poly(methylmethacrylate-co-methacrylic acid) ion-containing membranes
Şanli, Oya; Aras, Leyla (Wiley, 1990)
Several membranes prepared from poly(methylmethacrylate‐co‐methacrylic acid) and its Li+ and Zn2+ ionomers were tested for NaCl, creatinine and urea permeability. The permeabilities of the membranes were explained on the basis of pore contents determined from their scanning electron microscope micrographs. All the membranes showed higher permeabilities during the first 2 hours of experimentation. Introduction of Zn2+ ions into the copolymer as crosslinking agent did not have much effect on the membrane prop...
ELECTROINITIATED COPOLYMERIZATION OF ISOPRENE WITH INDENE
KHURSHID, A; Toppare, Levent Kamil; Akbulut, Ural (1987-09-01)
Citation Formats
N. ALGHEZAWI, Z. Küçükyavuz, and S. Küçükyavuz, “Conformational transition in poly(p-tert-butylstyrene),” Journal of Polymer Science: Polymer Letters Edition, pp. 111–115, 1990, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/51355.
METU IIS - Integrated Information Service open@metu.edu.tr