𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Characteristics of polymerization-filled polycaprolactams

✍ Scribed by V. M. Cheshkov; M. M. Natova; N. R. Ashurov; M. M. Usmanova; A. M. Vekselman


Publisher
John Wiley and Sons
Year
1997
Tongue
English
Weight
128 KB
Volume
64
Category
Article
ISSN
0021-8995

No coin nor oath required. For personal study only.

✦ Synopsis


A polymerization filling of a base in character monomer ( 1-caprolactam) was carried out using fillers with solid acid character and catalytic action such as galumina and calcium phosphate. The properties and structure of the polymerizationfilled polycaprolactam obtained were studied. The following characteristics were determined: melting temperature, glass transition temperature, crystallization temperature, tensile strength, and dynamic elastic modulus. The advantages of the polymerization filling method are shown as compared to conventional methods for homogeneous production of polycaprolactam.


πŸ“œ SIMILAR VOLUMES


Polymerization-filled polycaprolactam
✍ M.M. Natova; V.M. Cheshkov; N.R. Ashurov; M.M. Usmanova; A.M. Veksel'man πŸ“‚ Article πŸ“… 1993 πŸ› Elsevier Science 🌐 English βš– 209 KB

Adsorption interactions between basic monomer (8-caprolactam) and acidic inorganic surfaces (calcium phosphate and 3,-alumina have been investigated by i.r. spectroscopy. It has been shown that the character of the adsorption interactions would lead to similar behaviour during e-caprolactam polymeri

Polymerization filling of polycaprolacta
✍ V.M. Cheshkov; M.M. Natova; N.R. Ashurov; M.M. Usmanova; A.M. Veksel'man πŸ“‚ Article πŸ“… 1991 πŸ› Elsevier Science 🌐 English βš– 285 KB

The paper considers the possibility of synthesizing polycaprolactam on the basis of acid-base interaction of the caprolactam with a filler surface (calcium phosphate), without using initiating systems. The surface acidic properties of the filler are estimated by using the method of butylamine titrat

Block copolymers polycaprolactam-polysty
✍ J. Stehlíček; J. Ε ebenda πŸ“‚ Article πŸ“… 1977 πŸ› Elsevier Science 🌐 English βš– 484 KB

ABA block copolymers, where A and B represent polyamide and polystyrene segments respectively, were prepared by the anionic polymerization of caprolactam activated with polystyrene-bisacyllactams. Under mild polymerization conditions (in a solvent at 120Β°), very pure copolymers were obtained contain

Polymerization-filling of polytetrafluor
✍ G.K. Kostov; P. Charadjiev; N. Christova πŸ“‚ Article πŸ“… 1992 πŸ› Elsevier Science 🌐 English βš– 443 KB

Akstraet--Polymerization of tetrafluoroethylene (TFE) in an aqueous medium using a redox system in the presence of a hard disperse filler leads to polymerization-filled polytetrafluoroethylene (PTFE). The influences of various factors on the polymer yield, the conversion of TFE and the degree of fil