Facile synthesis of polyamide 6 (PA6)-based thermoplastic elastomers with a well-defined microphase separation structure by melt polymerization

2018 ◽  
Vol 9 (11) ◽  
pp. 1327-1336 ◽  
Author(s):  
Ruchao Yuan ◽  
Shuo Fan ◽  
Dequn Wu ◽  
Xueli Wang ◽  
Jianyong Yu ◽  
...  
Keyword(s):  
Microphase Separation ◽  
Polyamide 6 ◽  
Thermoplastic Elastomers ◽  
Facile Synthesis ◽  
Melt Polymerization ◽  
Polymerization Method

A facile melt polymerization method for polyamide-6 based thermoplastic elastomers with a well-defined microphase separation structure is proposed.

Biodegradable all polyester-based multiblock copolymer elastomers with controlled properties

2021 ◽  
Vol 12 (12) ◽  
pp. 1837-1845
Author(s):  
Hongjuan Li ◽  
Siyuan Xu ◽  
Jing Li ◽  
Yanyan Tu ◽  
Xiaohong Li ◽  
...  
Keyword(s):  
Environmentally Friendly ◽  
Thermoplastic Elastomers ◽  
Multiblock Copolymer ◽  
Tunable Properties ◽  
Polymerization Method

A cascade polymerization method is developed here for the synthesis of environmentally-friendly biodegradable all polyester-based thermoplastic elastomers with tunable properties.

EXPERIMENTAL STUDY ON THE CO2 LASER CUTTING OF NOVEL POLYAMIDE 6/FLUOROELASTOMER THERMOPLASTIC ELASTOMERIC BLENDS

2015 ◽  
Vol 88 (1) ◽  
pp. 125-137 ◽  
Author(s):  
Shib Shankar Banerjee ◽  
Anil K. Bhowmick
Keyword(s):  
Low Power ◽  
Co2 Laser ◽  
Process Parameters ◽  
Laser Power ◽  
Laser Cutting ◽  
Manufacturing Industry ◽  
Cutting Speed ◽  
Polyamide 6 ◽  
Thermoplastic Elastomers ◽  
Dynamic Vulcanization

ABSTRACT The application of the low-power CO2 laser-cutting process to fluoroelastomer (FKM), polyamide 6 (PA6), PA6/FKM thermoplastic elastomers (TPEs), and their thermoplastic vulcanizate (TPV) is reported. The main laser process parameters studied were laser power, cutting speed, and material thickness. The value of the top and bottom widths of the slit that were formed during laser cutting (kerf width), melted transverse area, and melted volume per unit time were measured and analyzed. Interestingly, TPE showed a smaller melted area and melted volume per unit time when compared with those values with PA6. Dynamic vulcanization further decreased these values. For example, the melted areas of PA6 and TPE were 510 × 10−3 mm2 and 305 × 10−3 mm2, respectively, which reduced to 238 × 10−3 mm2 for TPV at 40 W laser power. FKM showed the lowest value (melted area of 180 × 10−3 mm2). In addition, the output quality of the cut surface was examined by measuring the root mean square (RMS) roughness of the cut edges and heat-affected zone (HAZ). The obtained results indicated that the dimension of the HAZ and RMS roughness largely decreased in TPE when compared with PA6. For example, the HAZ of PA6 was 700 μm, which decreased to 230 μm for TPE at 40 W laser power. On the other hand, HAZ was nonexistent for FKM. Infrared spectroscopic analysis showed that there was no structural change of TPE or pristine polymers after applying the low-power CO2 laser on the surface of materials. CO2 laser cutting will be a new technique in this industry, and this analysis will assist the manufacturing industry to choose a suitable laser system with exhaustive information of process parameters for cutting or machining of rubber, TPEs, and TPVs.

Incorporation of a semi-aromatic nylon salt into polyamide 6 by solid-state or melt polymerization

Polymer ◽  
2012 ◽  
Vol 53 (23) ◽  
pp. 5242-5250 ◽  
Author(s):  
Seda Cakir ◽  
Marko Nieuwenhuizen ◽  
Pim G.A. Janssen ◽  
Rudy Rulkens ◽  
Cor E. Koning
Keyword(s):  
Solid State ◽  
Polyamide 6 ◽  
Melt Polymerization

Study on Preparation of Star PLGA Cucurbitacin-Loaded Microsphere and its Propertities

2014 ◽  
Vol 884-885 ◽  
pp. 630-633
Author(s):  
Yi Zhang ◽  
He Wei Shao ◽  
Yue Liu ◽  
Xiao Yan Han
Keyword(s):  
Drug Loading ◽  
Star Polymer ◽  
Cucurbitacin B ◽  
Melt Polymerization ◽  
Loading Amount ◽  
Polymerization Method

The sealed tube melt polymerization method was employed to synthesize four-arm star polymer PLGA, by which drug-loaded microspheres for cucurbitacin B were prepared. Taking drug loading amount and entrapment effiency as the indicators, drug-loading formulation was optimized.

Modification of Polyamide 6 and Polypropylene with Pebax Thermoplastic Elastomers

2001 ◽  
Vol 28 (5) ◽  
pp. 81-86
Author(s):  
N.M. Smirnova ◽  
D.K. Novikova ◽  
E.V. Kalugina ◽  
V.E. Dreval’
Keyword(s):  
Polyamide 6 ◽  
Thermoplastic Elastomers

Facile synthesis of poly(N-vinyl pyrrolidone) block copolymers with “more-activated” monomers by using photoinduced successive RAFT polymerization

2020 ◽  
Vol 11 (12) ◽  
pp. 2080-2088
Author(s):  
Yingjie Wang ◽  
Mengqi Wang ◽  
Liangjiu Bai ◽  
Lifen Zhang ◽  
Zhenping Cheng ◽  
...  
Keyword(s):  
Block Copolymers ◽  
Visible Light ◽  
Room Temperature ◽  
Raft Polymerization ◽  
Vinyl Pyrrolidone ◽  
Facile Synthesis ◽  
Polymerization Method

Well-defined PNVP block copolymers with more-activated monomers were synthesized by a single RAFT polymerization method under irradiation with visible light at room temperature.

PROP: an in situ cascade polymerization method for the facile synthesis of polyesters

2017 ◽  
Vol 8 (12) ◽  
pp. 1953-1962 ◽  
Author(s):  
Xiang Zhu ◽  
Jiali Gu ◽  
Xiaohong Li ◽  
Xiaoming Yang ◽  
Lian Wang ◽  
...  
Keyword(s):  
Facile Synthesis ◽  
Polymerization Method

Reactive processing of thermoplastic elastomers based on polyamide-6: preparation and characterization

2016 ◽  
Vol 25 (9) ◽  
pp. 765-773 ◽  
Author(s):  
Liang Jiang ◽  
Weibo Kong ◽  
Bo Wu ◽  
Xiaowei Fu ◽  
Yao Xiao ◽  
...  
Keyword(s):  
Polyamide 6 ◽  
Thermoplastic Elastomers ◽  
Reactive Processing
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