ZIB

Hits per page

hits 1 - 2 | 2 hits

Sorting

Electronic Resource

Synthesis of a poly(terephthaloylphosphine) (1992)

Banerjee, S. ; Palit, S. K. ; Rahman, S. ; [et al.]

Weinheim : Wiley-Blackwell

Angewandte Makromolekulare Chemie 199 (1992), S. 1-6

add to mindlist on the mindlist

Details

ISSN: 0003-3146

Keywords: Chemistry ; Polymer and Materials Science

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology , Physics

Description / Table of Contents: Poly(phenylphosphindiylterephthaloyl), ein neues phosphorhaltiges Polymeres, wurde durch Lösungspolykondensation von Dilithium(phenyl)phosphin mit Terephthaloylchlorid bei niedriger Temperatur hergestellt. Es ist in polaren aprotischen Lösungsmitteln löslich; die inhärente Viskosität in DMF bei 30°C beträgt 19 ml/g. Das Polymere wurde mittels Elementaranalyse sowie IR- und 1H-NMR-Spektroskopie charakterisiert. TGA-Messungen ergeben, daß das Polymere in Luft bis 250°C stabil ist; es ist selbstverlöschend.

Notes: Poly(phenylphosphinediylterephthaloyl), a novel phosphorus-containing polymer, was synthesized by low-temperature solution polycondensation of dilithio(phenyl)-phosphine with terephthaloyl chloride. The resulting polymer is soluble in polar aprotic solvents, having inherent viscosity of 19 ml/g in DMF at 30°C. The polymer was characterized by elemental analysis, IR and 1H-NMR spectroscopy. TGA data show that the polymer is stable up to 250°C in air. The polymer was found to be self-extinguishing.

Additional Material: 3 Ill.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1002/apmc.1992.051990101

Permalink

Library	Location	Call Number	Volume/Issue/Year	Availability

Others were also interested in ...

Paper (German National Licenses)

Fulltext

Electronic Resource

The distribution of some serum protein and red cell enzyme polymorphisms in the Koch ethnic group of west Bengal, India (1990)

Saha, N. ; Tay, J. S. H. ; Das, M. K. ; [et al.]

Springer

Journal of human genetics 35 (1990), S. 253-256

add to mindlist on the mindlist

Details

ISSN: 1435-232X

Keywords: mongoloid population ; blood genetic markers ; haptoglobin ; transferrin and Gc subtypes ; phosphoglucomutase subtypes ; Poliya-Deshi ; Tiyor

Source: Springer Online Journal Archives 1860-2000

Topics: Biology , Medicine

Notes: Summary Three populations (Poliya, Deshi, and Tiyor) of the Koch ethnic group have been studied for the distribution of three serum protein and four red cell enzyme polymorphisms. There was no significant difference in the allelic frequencies of these systems in the three populations of the Koch ethnic group. The overall gene frequencies were as follows:Hp 1, 0.21;Gc 1F, 0.34;Gc 1s, 0.36;Gc 2, 0.30;Tf C1, 0.66;Tf C2, 0.26;Tf C3, 0.001;Tf D, 0.06;GLO 1, 0.21;PGI 2, 0.04;AK 2, 0.01;PGM 1+, 0.80;PGM 1−, 0.06;PGM 2+, 0.11 andPGM 2−, 0.02. The phenotypic distribution at all the loci was at Hardy-Weinberg equilibrium.