Switchable Block Copolymer Surfactants for Preparation of Reversibly Coagulatable and Redispersible Poly(methyl methacrylate) Latexes

2013 ◽  
Vol 46 (4) ◽  
pp. 1261-1267 ◽  
Author(s):  
Qi Zhang ◽  
Guoqiang Yu ◽  
Wen-Jun Wang ◽  
Haomiao Yuan ◽  
Bo-Geng Li ◽  
...  
Keyword(s):  
Block Copolymer ◽  
Methyl Methacrylate ◽  
Poly Methyl Methacrylate

Micellization in solutions of hybrid block copolymer of poly(methyl methacrylate) and hyperbranched perfluorinated poly(phenylene germane)

2009 ◽  
Vol 51 (5) ◽  
pp. 492-501 ◽  
Author(s):  
E. R. Gasilova ◽  
O. G. Zakharova ◽  
A. V. Kozlov ◽  
A. P. Filippov ◽  
Yu. D. Semchikov
Keyword(s):  
Block Copolymer ◽  
Methyl Methacrylate ◽  
Poly Methyl Methacrylate

Synthesis and thermal analysis of poly(methyl methacrylate) oligomer functionalized polyethylene block copolymer

2016 ◽  
Vol 74 (6) ◽  
pp. 2137-2158 ◽  
Author(s):  
Urmilla Baruah ◽  
Maitrayee Saikia ◽  
Edja F. Assanvo ◽  
Somip Borphukan ◽  
Lachit Phukan ◽  
...  
Keyword(s):  
Thermal Analysis ◽  
Block Copolymer ◽  
Methyl Methacrylate ◽  
Poly Methyl Methacrylate

Synthesis of acrylic hot-melt adhesive based on poly(methyl methacrylate)-b-poly(2-ethylhexyl acrylate) copolymer using atom transfer radical polymerization for a nylon fabric bonding system

2019 ◽  
Vol 89 (23-24) ◽  
pp. 5177-5186
Author(s):  
Chung-Feng Jeffrey Kuo ◽  
Jiong-Bo Chen ◽  
Po-Yen Chen ◽  
Garuda Raka Satria Dewangga
Keyword(s):  
Molecular Weight ◽  
Block Copolymer ◽  
Methyl Methacrylate ◽  
Atom Transfer Radical Polymerization ◽  
Radical Polymerization ◽  
Atom Transfer ◽  
Poly Methyl Methacrylate ◽  
Bonding System ◽  
Nylon Fabric ◽  
Hot Melt

Adhesives, such as hot-melt adhesives (HMAs), are widely used in the textile industry for bonding layers of materials and have replaced traditional sewing methods. The block copolymer is a common type of HMA that provides excellent physical features and mechanical properties compared with others. Acrylate-based monomers, methyl methacrylate (MMA), and 2-ethylhexyl acrylate (2-EHA) were used as ingredients to form a linear block copolymer using atom transfer radical polymerization. MMA provides excellent cohesive strength, while 2-EHA provides good adhesion properties. An end-brominated poly(methyl methacrylate) (PMMA-Br) macroinitiator was synthesized from a MMA monomer and initiator, with the best composition obtained by the addition of a 0.6 mol initiator. The macroinitiator had the lowest molecular weight with highest conversion (97%). The addition of a 0.3 mol macroinitiator showed the lowest molecular weight with the highest conversion of acrylic copolymer PMMA- b-poly(2-ethylhexyl acrylate) (PEHA). The glass transition temperature increased with the addition of the macroinitiator concentration, from −43.7℃ to −37.6℃. The thermal stability was reduced with the addition of macroinitiator content, from 332.37℃ to 286.81℃. The shear strength and peel strength of the PMMA- b-PEHA HMAs on nylon fabrics were enhanced from 11.24 to 16.92 kg cm−2 and from 0.29 to 0.61 kg cm−1, respectively, and did not change significantly after being washed 50 times and then kept in low-temperature storage, with the addition of the macroinitiator concentration. The block copolymer PMMA- b-PEHA prepared in this study could be used as a HMA for nylon fabric bonding systems.

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