The study of surface segregation and the formation of gradient domain structure at the blend of poly(methyl methacrylate)/poly(dimethyl siloxane) graft copolymers and acrylate adhesive copolymers

Lee, Yong-Jun; Akiba, Isamu; Akiyama, Saburo

doi:10.1002/app.11223

Cited by 27 publications

(22 citation statements)

References 19 publications

(9 reference statements)

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“…We also observe in Fig. 2 the signals 1068.55 cm −1 (asymmetric ␦(Si O C)) and 1119.25 cm −1 (asymmetric (Si O Si)), 11,15 indicating the incomplete crosslinking of VTES and the formation of Si O Si units. It is worth noting that the peaks for SiOH absorption do not occur in this FT-IR spectrum, which indicates that the content of SiOH is very low.…”

Section: -18mentioning

confidence: 87%

“…5 This includes the preparation of core-shell latex particles, [6][7][8] latex interpenetrating polymer network (IPN), 9 and mixed emulsions. 10,11 The most widely used monomers are linear or ring organosilicones containing functional groups. The disadvantages of these systems are the great consumption and fairly low conversion of the organosilicone compounds, because of their poor miscibility with acrylates.…”

mentioning

confidence: 99%

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Preparation and properties of room temperature self‐crosslinking poly(MMA‐co‐BA‐co‐St‐co‐VTES) latex film

et al. 2005

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Self-crosslinking poly(methyl methacrylate-co-n-butyl acrylate-co-styrene-co-vinyltriethoxysilane) latex particles were prepared by seed emulsion polymerization. The presence of Si O Si in the prepared copolymer latex particle was confirmed by FT-IR. The crosslinking degree of the polymer latex particle was investigated by using tetrahydrofuran to swell the dried copolymer films with different vinyltriethoxysilane contents. The thermal properties of the solid films were investigated by using DSC and TGA. In addition, the mechanical properties and water resistances of the different copolymer films were also investigated in detail. It was found that the mechanical properties of the copolymer film could be enhanced by introducing vinyltriethoxysilane, and the water resistance of the copolymer film could be improved at certain vinyltriethoxysilane contents. C 2005 Wiley Periodicals, Inc.

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Section: -18mentioning

confidence: 87%

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confidence: 99%

Preparation and properties of room temperature self‐crosslinking poly(MMA‐co‐BA‐co‐St‐co‐VTES) latex film

et al. 2005

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“…As the molecular weight of polysiloxane decreases, a larger amount of polysiloxane accumulated at the F-A substrate [7,21]. The molecular weight of polysiloxane in B-MS was probably lower compared to polysiloxane of SC-CS.…”

Section: Energy Dispersive X-ray (Edx) Analysismentioning

confidence: 91%

“…Polysiloxanes have very low glass transition temperature, easy processability, excellent thermal stability, and high flexibility [6]. The blending of acrylic and polysiloxane results in phase separation due to low surface energy of polysiloxane [7]. Therefore, grafting of polysiloxane onto acrylic is required to avoid a macro-scale phase separation.…”

Section: Introductionmentioning

confidence: 99%

Optimization and comparison of polysiloxane acrylic hybrid latex synthesis methods

Bas

Soucek

2012

J Polym Res

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Two methods were used to prepare polysiloxanefunctionalized acrylic latexes via emulsion polymerization. Ethyl acrylate and 2-ethylhexyl acrylate were used in both methods as acrylic phase. In the first method, an acrylic core was prepared with addition of a coupling agent, 3-(trimethoxysilyl) propyl methacrylate, after which cyclic siloxane monomer (octamethylcyclotetrasiloxane) was reacted with the coupling agent. In the second method, a silaneterminated polysiloxane (H-PDMS) was reacted with ethylene glycol dimethacrylate, and then copolymerized with ethyl acrylate and 2-ethylhexyl acrylate in a batch emulsion polymerization. Particle size distribution and particle morphology were evaluated by using dynamic light scattering (DLS) and transmission electron microscopy (TEM), respectively. Core-shell morphology was observed in TEM for the first preparation method as proposed. After film formation, surface tension, morphology and dynamic mechanical properties were investigated. Stratification of polysiloxane was examined by Fourier-transform infrared spectroscopy (FT-IR) and energy dispersive X-ray (EDX). Energy dispersive X-ray data indicated that only the second preparation method had higher silicon content at film-air interface than film-substrate interface. In both methods, storage modulus and surface energy of latex films decreased after grafting polysiloxane.

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“…16,17 The surface enrichment of polydimethylsiloxane (PDMS) in the blends specifically depends on PDMS chain length. 18 PDMS chains reside in the side chain of the molecule and accumulate on the polymer surface. 19 -21 PDMS polymers are extremely hydrophobic and usually show water-contact angles well above 100°.…”

Section: -8mentioning

confidence: 99%

Structural modification of expandable polystyrene. III. Copolymerization with siloxane‐based macroinitiator

Taşkıran

2006

J of Applied Polymer Sci

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Conventional expandable polystyrene (EPS) was chemically modified by preparing copolymers containing 0.1%, 0.2%, and 0.5% siloxane-based macroinitiator. This was used to enhance the surface and thermal properties of EPS particles. Copolymeric expandable polystyrene samples were characterized with various techniques including 1 H-NMR, gel permeation chromatography, differential scanning calorimetry, scanning electron microscopy, and contact angle measurement.

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The study of surface segregation and the formation of gradient domain structure at the blend of poly(methyl methacrylate)/poly(dimethyl siloxane) graft copolymers and acrylate adhesive copolymers

Cited by 27 publications

References 19 publications

Preparation and properties of room temperature self‐crosslinking poly(MMA‐co‐BA‐co‐St‐co‐VTES) latex film

Preparation and properties of room temperature self‐crosslinking poly(MMA‐co‐BA‐co‐St‐co‐VTES) latex film

Optimization and comparison of polysiloxane acrylic hybrid latex synthesis methods

Structural modification of expandable polystyrene. III. Copolymerization with siloxane‐based macroinitiator

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