Course Title : Introduction to Polymer Chemistry II (Fundamental Chemistry)

Code 72170
Course Year 3rd year
Term
Class day & Period
Location
Credits 2
Restriction No Restriction
Lecture Form(s) Lecture
Language Japanese
Instructor H. Watanabe (ICR), H. Kaji (ICR), Y. Matsumiya (ICR), and K. Shizu (ICR)

Course Description

Characteristic structures (such as crystalline and amorphous structures) and characteristic properties (such as viscoelasticity) of polymers result from the thread-like primary structure of polymer molecules. Focusing on this point, this lecture addresses the structures and properties of polymers in solutions, in melts, and in solids.

Grading

Judged on the basis of home-work reports and the final exam.

Course Goals

To understand molecular origin(s) of the characteristic structures, dynamics, and properties of polymers.

Course Topics

Theme Class number of times Description
Conformation of Polymer Chain 2 The conformation distribution of flexible polymers and the relationship between their average size and molecular weight are explained.
Solution Properties 3 The thermodynamic behavior of polymer solutions, such as the osmotic pressure and phase separation,is explained on the basis of the Flory-Huggins theory. For this purpose, molecular expressions are derived for the mixing entropy, mixing enthalpy, and chemical potential. In addition, a brief introduction is given for methods of molecular weight determination on the basis of the solution properties.
Structure in Solid State 2 Various morphology of crystalline polymers, i.e., single crystal, spherulite, lamellar crystalline, and extended chain crystal, are introduced and basic crystallization processes giving this variety of morphology are explained. In addition, methods of analysis of these crystalline structures are intriduced and the results of the analysis are explained.  
Glass Transition 1 The glass transition phenomenon is explained in relation to the thermal motion of polymer chains. Changes of the thermal and mechanical properties on this transition are explained are related to the motion of the polymer chains.
Rubber Elasticity 2 From a molecular point of view, the conformation distribution of flexible polymer chains above the glass transition point is related to the rubber elasticity. The molecular expression is derived for the stress and modulus of rubbers.
Polymer Dynamics 4 The viscoelastic behavior of flexible polymer melts is related to the large scale motion of the polymer chains. In particular, the entanglement effect due to the uncrossability of the chains is explained from a molecular point of view, and some basic models are introduced. In addition, for polymers having type-A dipoles parallel along the chain backbone, a relationship between viscoelastic and dielectric properties is explained.
Summary 1 Essence of the whole lecture and a relationship among all items in the lecture are summarized, thereby improving the understanding of the attending students in particular for the items not well addressed in the the exams.

Textbook

Printed documents are distributed in the class.

Textbook(supplemental)

Shin Kobunshi Kagaku Joron (a book published from Kagaku Dojin)
Kobunshi no Kouzou to Bussei (a book published from Koudansha) ISBN978-4-06-154380-5

Prerequisite(s)

The students taking this class are desired to learn the basic part of polymer science at the class "Introduction to Polymer Chemistry I (Fundamental Chemistry)".

Web Sites

Additional Information