High crystalline, porous polyamide 6 by anionic polymerization

Polymer ◽  
2018 ◽  
Vol 138 ◽  
pp. 8-16 ◽  
Author(s):  
Md Arifur Rahman ◽  
Lawrence A. Renna ◽  
D. Venkataraman ◽  
Philippe Desbois ◽  
Alan J. Lesser
Keyword(s):  
Anionic Polymerization ◽  
Polyamide 6

Anionic polymerization and properties of graft copolymers consisting of alternating styrene/maleimide copolymer main chains and polyamide 6 grafts

2008 ◽  
Vol 108 (3) ◽  
pp. 1880-1886 ◽  
Author(s):  
Wei Xu ◽  
Yao-Chi Liu ◽  
Yuan-Qin Xiong ◽  
Yan-Ru Miao ◽  
Wei-Jian Xu
Keyword(s):  
Anionic Polymerization ◽  
Graft Copolymers ◽  
Polyamide 6

Study of Polyamide 1212/Polyamide 6 Composites with Microfiber Structure via in-Situ Anionic Polymerization

2007 ◽  
Vol 40 (22) ◽  
pp. 7984-7988 ◽  
Author(s):  
Yulin Li ◽  
Vincent Ferreiro ◽  
Tingxiu Xie ◽  
Guisheng Yang
Keyword(s):  
Anionic Polymerization ◽  
Polyamide 6

scholarly journals Anionic Polymerization of ε-Caprolactam under the Influence of Water: 2. Kinetic Model

2020 ◽  
Vol 4 (1) ◽  
pp. 8 ◽  
Author(s):  
Rainer Wendel ◽  
Philipp Rosenberg ◽  
Michael Wilhelm ◽  
Frank Henning
Keyword(s):  
Experimental Data ◽  
Kinetic Model ◽  
Reaction Kinetics ◽  
Water Content ◽  
Anionic Polymerization ◽  
Polyamide 6 ◽  
External Influences ◽  
Influence Of Water ◽  
Kinetics Of

The reaction kinetics of anionic polymerization for the production of anionic polyamide 6 (aPA6) are widely understood. It is also known that this reaction is very sensitive to external influences such as water. This paper analyzes and quantifies the influence of water on the reaction of ε-caprolactam to anionic polyamide 6. A kinetic model is developed in which the reactive molecules of the activator and catalyst are defined as variables and the concentrations of activator and catalyst as well as water content are considered. A model for the calculation of the reaction kinetics is established and validated with experimental data. The developed model can be used to predict the influence and compensation of water by addition of surplus activator and catalyst during the polymerization of ε-caprolactam.

Polyamide 6/Polyurethane/Graphite Composites Prepared by Anionic Polymerization Process. II. Friction and Wear

2012 ◽  
Vol 532-533 ◽  
pp. 30-34
Author(s):  
Xin Deng ◽  
Du Xin Li ◽  
Jin Wang ◽  
Jun Yang
Keyword(s):  
Wear Rate ◽  
Coefficient Of Friction ◽  
Anionic Polymerization ◽  
Friction And Wear ◽  
Polyamide 6 ◽  
Chromium Steel ◽  
Polymerization Process ◽  
Sliding Speed ◽  
Graphite Composites ◽  
Electronic Microscope

Polyamide 6-polyurethane (PA6-PU) block copolymers filled with graphite particles were prepared by anionic polymerization process. The friction and wear experiments were conducted using a UMT-3 machine with the chromium steel ball sliding on surface of the composites at high sliding speeds of 500rpm, 1000rpm and 1500rpm and loads of 78.5N and 157N. With adding of graphite, coefficient of friction and wear rate values of the composites decreased firstly, and then increased. And the influence of the applied load and sliding speed on tribological properties of the composites was explored in this study. The results showed coefficient of friction and wear rate values increased with the increasing of load. Coefficient of friction decreased and wear rate values increased with increasing of sliding speed. Microstructure of wear surface of the tested composites was inspected by scanning electronic microscope(SEM) and wear mechanism of the composites was studied.

Grafting of polyamide 6 by the anionic polymerization of ɛ-caprolactam from an isocyanate bearing polystyrene backbone

2008 ◽  
Vol 46 (14) ◽  
pp. 4766-4776 ◽  
Author(s):  
Cai-Liang Zhang ◽  
Lian-Fang Feng ◽  
Sandrine Hoppe ◽  
Guo-Hua Hu
Keyword(s):  
Anionic Polymerization ◽  
Polyamide 6

scholarly journals Structure–properties relationship in single polymer composites based on polyamide 6 prepared by in-mold anionic polymerization

2013 ◽  
Vol 48 (20) ◽  
pp. 7260-7273 ◽  
Author(s):  
Nadya Dencheva ◽  
Zlatan Denchev ◽  
António Sérgio Pouzada ◽  
Ana Sofia Sampaio ◽  
Ana Maria Rocha
Keyword(s):  
Polymer Composites ◽  
Anionic Polymerization ◽  
Polyamide 6 ◽  
Structure Properties
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