关键词:

非对称高分子, 识别, 选择性壁面, Monte Carlo模拟

Abstract:

The adsorption of asymmetrical di-block copolymer on stripe-patterned surfaces has been investigated by off-lattice Monte Carlo（MC）simulation.The results showed that the polymer-surface binding of asymmetrical di-block copolymer was the same as symmetrical di-block copolymer proceeding in two steps;i.e.,adsorption and recognition.With studies on the configuration of polymers;the mean-square radius of gyration along z axis was always smaller than that along x or y axis regardless of the width of stripes.It was shown that tails firstly increasd and then kept unchanged with increasing adsorption energy when the width of stripes slit was fixed.When adsorption energy was fixed;tails increased with increasing number of stripes.Loops had a small trend to descend when the width of stripes was larger.But the downtrend of loops increased rapidly with narrower stripe width.

Key words:

非对称高分子, 识别, 选择性壁面, Monte Carlo模拟