Accession Number : ADA304342

Title :   Isodisperse Telechelic Polymers and Their Polyurethane Derivatives. Sample Preparation.

Descriptive Note : Interim rept. no. 1.

Corporate Author : MAGYAR TUDOMANYOS AKADEMIA BUDAPEST

PDF Url : ADA304342

Report Date : 13 OCT 1995

Pagination or Media Count : 11

Abstract : Although the polydispersities of the samples are slightly different, they are within the limits given in our US Patent (bar-Mw/bar-Mn = 1.5 to 2.0). Due to the different molecular weights, every sample was prepared with a somewhat different polymerization recipe, the details were given in our previous 1st Interim Report (September 28, 1995, Contract No. N68171-95-C-9086). The No. 1. sample was handed personally by Prof. F. Tudos to dr. G. Hagnauer on July 6, this year, in Watertown. The No. 2. and No. 3. samples were sent by air mail on October 13, this year. The structures of the samples were characterized by FT-IR, (1)H-NMR and GPC investigations. The measurements are given graphically, their evaluations are summarized in the Table 1. The (1)H-NMR spectra of the samples were recorded by a Varian 400 type instrument. jg p1

Descriptors :   *POLYMERS, *MOLECULAR WEIGHT, *POLYURETHANE RESINS, FOURIER TRANSFORMATION, NUCLEAR MAGNETIC RESONANCE, INFRARED SPECTROSCOPY, AIR, POLYMERIZATION, STRUCTURES, HYDROGEN, SAMPLING, FOURIER SPECTROSCOPY, PATENTS.

Subject Categories : Polymer Chemistry
      Physical Chemistry
      Atomic and Molecular Physics and Spectroscopy

Distribution Statement : APPROVED FOR PUBLIC RELEASE