Mechanical properties of a rubber-reinforced block copolymer PMMA: Effect of the nanostructuration on tribological performances

Multiblock copolymers of poly(2-vinylpyridine) (P2-VP) and polyoxyethylene (PEO) were synthesized by condensing telechelic dihydroxy poly(2-vinylpyridine) (THPVP) and PEO with dichloromethane in the presence of potassium hydroxide. The copolymers were purified by extraction with water and toluene successively and characterized by Fourier Transform Infrared Spectroscopy and nuclear magnetic resonance spectroscopy. The block copolymers behave as good compatibilizers for the blending of epichlorohydrin rubber (CHR) with poly(vinyl chloride) (PVC). The addition of approximately 2-3% block copolymer to the blends evidently improves their mechanical properties and causes the two glass transition temperatures ( Tg) to become closer. The blends with a weight ratio PVC/CHR of 4/6 and the addition of 2-4% block copolymer show mechanical properties consistent with those of a thermoplastic elastomer.

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Mechanical properties of poly (ethylene terephthalate)/hydrogenated styrene-isoprene block copolymer composites.

NIPPON GOMU KYOKAISHI ◽

10.2324/gomu.66.741 ◽

1993 ◽

Vol 66 (10) ◽

pp. 741-747 ◽

Cited By ~ 1

Author(s):

Asahiro NAGATANI ◽

Mari ISHIHARA ◽

Masaru MORI ◽

Jojiro OKUMURA ◽

Koichi YAMAGUCHI

Keyword(s):

Mechanical Properties ◽

Block Copolymer ◽

Ethylene Terephthalate ◽

Poly Ethylene Terephthalate ◽

Poly Ethylene ◽

Copolymer Composites

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Sequential Mesoscale Approach for Determining the Effects of the Addition of a Block Copolymer Compatibilizer on the Mechanical Properties of Polymer Blends

Acta Physico-Chimica Sinica ◽

10.3866/pku.whxb201410171 ◽

2014 ◽

Vol 30 (12) ◽

pp. 2241-2248

Author(s):

DENG Sheng-Wei ◽

◽

HAN Xia ◽

HUANG Yong-Min ◽

XU Shou-Hong ◽

...

Keyword(s):

Mechanical Properties ◽

Block Copolymer ◽

Polymer Blends

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Poly(styrene-b-butadiene-b-styrene)-Dye-Coupled Polyhedral Oligomeric Silsesquioxanes

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.123-125.169 ◽

2010 ◽

Vol 123-125 ◽

pp. 169-172

Author(s):

Steven Spoljaric ◽

Robert A. Shanks

Keyword(s):

Mechanical Properties ◽

Thermal Stability ◽

Block Copolymer ◽

Exponential Function ◽

Polyhedral Oligomeric Silsesquioxane ◽

Element Model ◽

Polyhedral Oligomeric Silsesquioxanes ◽

Creep And Recovery ◽

Oligomeric Silsesquioxane ◽

Colour Coordinates

Dye-coupled polyhedral oligomeric silsesquioxane (POSS) were prepared and the coloured POSS particles were ultrasonically solution dispersed in poly(styrene-b-butadiene-b-styrene) (SBS). POSS molecules contained either isobutyl or phenyl groups to provide selective compatibility with either the soft (butadiene) or hard (styrene) phase within the block copolymer. The composition and thermal stability were characterised using thermogravimetry. Colour coordinates were measured. Tensile mechanical properties, creep and recovery were determined. Creep was modeled using the 4-element model of Maxwell and Kelvin-Voigt, while recovery correlated with the stretched-exponential function of Kohlrausch, Williams and Watts.

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