This course focuses on the high-order structure formation in melt processing of polymers, especially on the melt spinning process.
High-order structure development through molecular orientation and crystallization will be discussed
Properties and functionalities of organic materials can be manipulated not only by the designing of chemical structure but also through the three-dimensional arrangement of molecules in the products. In this context, it is important to understand the melt processing of polymers as a tool for controlling the high-order structure. Relation between the temperature and stress histories applied to molten materials in the polymer flow and high-order structure development through molecular orientation and crystallization will be introduced in this course.
Polymeric materials, melt processing, stress-optical rule, crystallization kinetics
|Intercultural skills||Communication skills||✔ Specialist skills||Critical thinking skills||✔ Practical and/or problem-solving skills|
This course is held over two academic quarters, with part A for explaining fundamental equations of polymer processing and part B for explaining the mechanism of high order structure in polymer processing. Contents of part A and part B are closely related. Students are recommended to learn the two courses consecutively.
Classes are held mainly using a blackboard, while power-point file and video image are used additionally for providing further understanding.
|Course schedule||Required learning|
|Class 1||Review of "Organic materials processing A"||Relation between polymer processing and high-order structure development|
|Class 2||Theorretical analysis of melt spinning process -steady state and non-steady state||Fundamentals of transfer phenomena|
|Class 3||High-order structure formation of polymers through melt processing - molecular orientation and crystallization||Fundamental concept of high-order structure development|
|Class 4||Development of molecular orientation - stress-optical rule||Relation between stress-optical coefficient and polymer structure|
|Class 5||Crystalline morphology of polymers||Folded chain crystals, spherulites, fiber structure|
|Class 6||Crystallization kinetics of polymers, effect of molecular orientation||Crystallization kinetics under cooling condition|
|Class 7||Mutual interaction of melt processing and high-order structure formation||Heat evolution and change in flowability through high-order structure formation|
|Class 8||High-order structure development in various processing technologies||Film processing, blow molding, injection molding|
Materials for the classes will be found on OCW-i
Assessment is based on the quality of the written reports
No prerequisities are necessary
Prof. Takeshi Kikutani, kikutani.t.aa[at]m.titech.ac.jp