About this Materials Science article
Synthesis and solution properties of poly[2-methoxy-4,6-di(p,p′-isopropylidene diphenyloxy)-s-triazine] I by P.P. Shah is a Materials Science article available to read on EtoBox.
Abstraet--Poly[2-methoxy-4,6-di(p,p'-isopropylidene diphenyloxy)-s-triazine] has been synthesized by interfacial polycondensation of 2-methoxy-4,6-dichloro-s-triazine with bisphenol A. The conditions have been optimized to prepare a sample of both high solubility and molecular weight. The polymer has been fractionated by fractional precipitation and the fractions characterized by viscometry, osmometry and gel permeation chromatography. Mark-Houwink-Kuhn-Sakurada (MHKS) expressions have been developed for three solvents. The values of unperturbed dimensions ((R2)o/M) j/2, solvent-polymer interaction parameter (B and Z~) and conformational parameter (a) have been computed by applying the two-parameter theories of excluded volume developed by Fixman, Kurata, Stockmayer and Roig and by Flory, Fox and Schaefgen.
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- Author
- P.P. Shah
- Publisher
- Elsevier Science; Elsevier ; Elsevier Ltd.; Elsevier BV (ISSN 0014-3057)
- Published
- 1984
- Language
- EN
- Field
- Materials Science (Physical Sciences)