Sulfur-Containing Polymer Polycondensation for Better Processability
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Solution Overview
Problem
Existing methods for producing sulfur-containing polymers are complex and restrict polymer structure, limiting freedom in design and resulting in poor processability and mechanical properties.
Innovation Solution
Introduce a polycondensable functional group into the sulfur-containing polymer structure and utilize a polycondensation reaction to produce the polymer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the inverse vulcanization method is used to produce sulfur-containing polymers, then the stability of the polymer structure is improved, but the device complexity and synthesis conditions become complicated
Solution Approach 1:
The patent changes the reaction parameters and approach by using polycondensation instead of inverse vulcanization. It employs simple condensation reactions between sulfur-containing monomers and diols or dicarboxylic acids under controlled conditions, avoiding the complex synthesis conditions of inverse vulcanization while achieving stable polymer structures through systematic parameter optimization
Solution Approach 2:
The patent replaces the mechanical/chemical complexity of inverse vulcanization with simpler condensation reactions. Instead of using complex vulcanization chemistry, it substitutes straightforward polycondensation processes that involve fewer steps and simpler reagents, thereby reducing device complexity while maintaining structural stability
2Stability of the object's composition
If the inverse vulcanization method is used to produce sulfur-containing polymers, then the stability of the polymer structure is improved, but the freedom in polymer design is restricted
Solution Approach 1:
The patent establishes a universal polycondensation approach that can produce various sulfur-containing polymer structures by simply changing the monomers and condensers. This multi-functional method allows design of polymers with different compositions, structures, and properties (flexible, rigid, crosslinked) using the same basic reaction framework, thereby achieving both stability and design freedom
Solution Approach 2:
The patent segments the polymer structure into modular units with specific functional groups (sulfur-containing monomers, diols, dicarboxylic acids). This segmentation allows independent design and combination of different structural elements to achieve desired polymer properties while maintaining stability, providing versatility without compromising structural integrity
3Ease of manufacture
If conventional methods are used to produce sulfur-containing polymers, then the production process is established, but the mechanical properties and processability are poor
Solution Approach 1:
The patent creates composite polymer structures by combining sulfur-containing monomers with various diols and dicarboxylic acids in controlled ratios. This composite approach allows optimization of both mechanical properties and processability through systematic variation of component composition, establishing a production process that yields materials with superior performance
4Device complexity
If sulfur-containing polymers are produced without polycondensation, then the production method is simpler, but the freedom in obtaining various compositions and structures is limited
Solution Approach 1:
The patent demonstrates that polycondensation with simple reagents and controlled parameters can achieve diverse polymer compositions and structures. By varying the types of monomers, diols, and dicarboxylic acids, and adjusting reaction conditions (temperature, catalysts, stoichiometry), the method produces a wide range of polymer variants while maintaining operational simplicity
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
Facilitates the production of novel sulfur-containing polymers with various compositions and structures, enhancing mechanical properties and processability, while reducing synthesis complexity and odor.
Implementation Method 1
reacting a linear sulfur polymer and compound C having at least two polycondensable functional groups to obtain a sulfur-containing macromolecular compound
Data Source
AI summary
Provided is a novel sulfur-containing polymer and a method for producing the same, a composition comprising the novel sulfur-containing polymer, and a sulfur-containing compound. The sulfur-containing macromolecular compound of the present invention has a structural unit represented by, for example, the following formula (1):wherein in formula (1), n represents a number of 1 or more, R represents an organic group, and R1 represents a divalent organic group derived from a polycondensable functional group. The method for producing a sulfur-containing macromolecular compound of the present invention comprises reacting a linear sulfur polymer and compound C having two polycondensable functional groups to obtain a sulfur-containing macromolecular compound.