Topic
Polymer blend
About: Polymer blend is a research topic. Over the lifetime, 18474 publications have been published within this topic receiving 437183 citations. The topic is also known as: polymer mixture & Polymerblend 或者 Polyblend.
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TL;DR: In this article, a detailed analysis of the various factors that contribute to increase or decrease the growth rate of spherulites is reported and supported by several examples, mainly with regard to miscibility of the components.
164 citations
TL;DR: In this paper, a lamellae-forming poly(ethylene oxide)-b-polystyrene (EOS) has been blended with a polystyrene homopolymer (PS) and a PS oligomer (PSO), respectively, to obtain miscible polymer blends.
164 citations
TL;DR: The kinetics of phase separation in thin polymer blend films of polystyrene and polybutadiene on a silicon substrate is examined by optical microscopy of the free film boundary and observations are consistent with a crossover from three- to two-dimensional spinodal decomposition kinetics in the (off-critical) viscous hydrodynamic regime.
Abstract: The kinetics of phase separation in thin polymer blend films of polystyrene and polybutadiene on a silicon substrate is examined by optical microscopy of the free film boundary. Our observations on 1000 and 200 \AA{} films are consistent with a crossover from three- to two-dimensional spinodal decomposition kinetics in the (off-critical) viscous hydrodynamic regime. In this stage of phase separation the exponent $n$, characterizing the scale $R(t)\ensuremath{\sim}{t}^{n}$ of the coarsening pattern, is predicted to change from 1 to a value near 0.46 upon lowering the dimensionality.
164 citations
162 citations
TL;DR: A new polymer blend formed by poly(3-hexylthiophene)-poly(4-vinylpyridine) block copolymers and [6,6]-phenyl-C61-butyric acid methyl ester is reported, which exhibits microphase separated morphologies of electron-donor and electron-acceptor rich domains.
Abstract: A new polymer blend formed by poly(3-hexylthiophene)-poly(4-vinylpyridine) (P3HT-P4VP) block copolymers and [6,6]-phenyl-C61-butyric acid methyl ester (PCBM) is reported. The P4VP and PCBM are mixed together by weak supramolecular interactions, and the resulting materials exhibit microphase separated morphologies of electron-donor and electron-acceptor rich domains. The properties of the blend, used in photovoltaic devices as active layers, are also discussed.
162 citations