Block Copolymer Block Ratio Control for Nanoscale Cylinder Formation
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Solution Overview
Problem
Existing methods for synthesizing block copolymers fail to accurately control the ratio of blocks, leading to inconsistencies in the self-assembling properties and phase separation, which is crucial for forming specific nanoscale structures like cylindrical forms in applications such as nanodevices and magnetic storage media.
Innovation Solution
A block copolymer comprising two distinct blocks, where the ratio of their densities, molar masses, and hydrogen atom ratios are carefully controlled using Equation 1 (X = 1 + D × M / K × L), allowing for precise adjustment of the block copolymer's structure through microphase separation, enabling efficient formation of cylindrical structures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If existing methods for synthesizing block copolymers are used, then block copolymers can be produced, but the ratio of blocks cannot be accurately controlled, leading to inconsistencies in self-assembling properties and phase separation
Solution Approach 1:
The patent applies parameter changes by precisely controlling the density ratio (D), molar mass ratio (M), and hydrogen atom ratio (K) between blocks to achieve the target X value. By adjusting these physical and chemical parameters during synthesis, the invention enables accurate control of block ratios and consistent self-assembling properties, directly resolving the technical contradiction between manufacturing precision and reliability.
2Ease of manufacture
If block copolymers are synthesized without precise control of block ratio parameters, then synthesis can be performed, but the self-assembling properties and phase separation behavior become inconsistent
Solution Approach 1:
The patent replaces empirical, trial-and-error synthesis approaches with a systematic calculation method based on Equation 1. This substitution of mechanical/empirical methods with a mathematical model enables precise control of block ratios while maintaining ease of manufacture, as the equation provides clear guidance for achieving target compositions without requiring complex iterative adjustments.
3Adaptability or versatility
If the block copolymer structure is not precisely controlled, then various forms can be produced, but efficient formation of cylindrical structures cannot be achieved
Solution Approach 1:
The patent applies local quality by optimizing specific local parameters (density ratio D, molar mass ratio M, hydrogen atom ratio K) to achieve the target X value, which specifically promotes cylindrical structure formation. This localized optimization of compositional parameters enables efficient cylindrical structure formation while preserving the ability to produce other structures by adjusting parameters, resolving the contradiction between versatility and productivity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach ensures the block copolymer exhibits excellent self-assembling and phase separation properties, enabling the formation of regular structures like cylinders, which is essential for various nanotechnology applications, including magnetic storage and electronic devices.
Implementation Method 1
The block copolymer can be constructed in a structure such as a sphere, a cylinder and a lamella through phase separation
Implementation Method 2
The structure that is formed as the result of the self-assembly phenomenon of a block copolymer has a domain whose size can be adjusted
Data Source
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AI summary
The present application relates to a block copolymer and uses thereof. The present application can provide a block copolymer - which exhibits an excellent self-assembling property and thus can be used effectively in a variety of applications - and uses thereof.