Design of Soft Materials from Liquid Triblock Co-Oligomers and Metal Nanoparticles
Design of Soft Materials from Liquid Triblock Co-Oligomers and Metal Nanoparticles
复制标题
液态三嵌段共聚低聚物和金属纳米粒子的软材料设计
DOI:
10.1021/cm502322g
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发表时间:
2014
影响因子:
8.6
通讯作者:
Seema Agarwal
中科院分区:
文献类型:
--
作者:
Holger Pletsch;Max J. Schnepf;Seema Agarwal
Thermally processable soft material networks with adjustable mechanical properties made from very low molar massα,ω-dithiol functionalized ABA triblock co-oligomers (α,ω-dithiol oligo(isoprene-b-styrene-b-isoprene) (TISIT)) using AgNP as thermally reversible cross-linking points are highlighted in the present work. Liquid TISIT oligomers were synthesized by sequential anionic polymerization and subsequently cross-linked with AgNP. Low molar masses (4200–4800 g mol–1) were engaged, assuring disordered microstructures and therefore, low viscosities at elevated temperatures. Smooth films with homogeneous nanoparticle distributions of the resulting quasi-segmented soft material networks (TISIT@AgNP) were made by heat pressing. The interplay of styrene and AgNP as the structure-supplying portions in TISIT@AgNP samples facilitates access to materials with tensile strengths up to 5.58 MPa, toughness up to 13.3 MN mm–2, and tensile moduli up to 80.1 MPa at room temperature and strongly decreased elasticity and viscosity at elevated temperatures, even below the glass transition temperature of polystyrene.
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作者:
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通讯作者:
Susan Joseph;Sabu Thomas
DOI:
--
发表时间:
2002
期刊:
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作者:
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DOI:
--
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1970
期刊:
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DOI:
--
发表时间:
1995
期刊:
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作者:
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