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
Polymerization filling of polycaprolactam
β Scribed by V.M. Cheshkov; M.M. Natova; N.R. Ashurov; M.M. Usmanova; A.M. Veksel'man
- Publisher
- Elsevier Science
- Year
- 1991
- Tongue
- English
- Weight
- 285 KB
- Volume
- 27
- Category
- Article
- ISSN
- 0014-3057
No coin nor oath required. For personal study only.
β¦ Synopsis
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 titration. Polymerization kinetics are studied and the apparent activation energy of the process, as well as the degree of crystallinity of the resulting polymer, are measured.
π SIMILAR VOLUMES
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
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
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