Chapter 5 Evaluation, Characterization
and Analysis of Polymers
This chapter will briefly discuss analytical and evaluative tools
available to the polymer chemist, with major focus on spectroscopic
and thermal methods because these are us
Chapter 4 Chemical Structure and Polymer Properties
Chemical structures of polymers determine their properties.
Structure-property relationships are very critical in engineering and
materials research. In this chapter, many mechanical and
' n '~ ma.
I" a n .a . I; 4., 1 '. I
9 W 3 7 ' WMIVIIIMmla.
"71. . Mme-t -W-llltllI.A.l.AIIlII-u|h.l.u.c|u.
1* ,. 1 ' to n. 1!. Paul. pp. Im (a) I. A. Itcrl. I. n. Minn. m1
"' 4. A. .KydcniuulmI.0ulnumbtn|.md I. Hymmmnmm
: j. . m.AmI'anm.4o.114(19
Chapter 3 Chemical Structure and Polymer Morphology
As we have known that molecular weights of polymers are
different from our general concept of molecular weight. For
polymers, MW is an average and it is a distribution.
A polymer with hi
Chapter 7 Ionic Polymerization
Ionic polymerizations follow the same basic steps as freeradical chain-growth polymerization (i.e. initiation, propagation,
and termination); Polymerization of vinyl monomers with an
Chapter 10 Step-Reaction and Ring-Opening Polymerization
10.2 Step-reaction polymerization-kinetics
Features of step-reaction polymerization:
Linear polymers are synthesized either from difunctional
monomers of AB typ
Chapter 13 Polyamides and related polymers
Ordinary polyamides have the functional groups of
But a number of related polymers with the following functional
groups will be discussed as well.
O C NH
C NH NH
HN C NH
SPECIAL TOPICS IN POLYMER
AND FIBER SCIENCE
Olson 109 12:10-1:30 MW
Course Goals:To bring graduate students up to date in selected topics in polymers and
fibrous materials. Will focus on polymer structure-property, chemical
Chapter 9 Reactions of Vinyl Polymers
A lot of new polymers can be prepared by chemical
modifications of existing polymers, such as fire-retardant, antistatic,
antibacterial, and .
Reactions that involve the introduction or
Chapter 18 Natural Polymers
Natural polymers include polysaccharides, proteins,
polynucleotides, rubber, and many other materials, which are listed
in Tables 18.1 and 18.2.
18.2 Miscellaneous Natural Polymers
Chapter 1 Basic Principles
Milestones of polymer development:
Swedish chemist Berzelius polymer was first used
polymerization of styrene was reported
Synthesis of peg and poly(ethylene succinate)
Belgian-born Bakelite Phenol-formald
(q) shear thinning (v) thermoplastic elastomer . . W . , ld tt xhibtth te c M1
(r) spherulite (w) thermotropic liquid crystal 8. Which of the followmg 1somer1c polymers wou you expec 0e 1 egrea r ry _
(s) stereoblock polymer (x) threo (a) CHzCHzCII CHZ
Chapter 11 Polyethers, polysulfides, and related polymers
Table 11.1 shows the polymers.
11.2 Preparation of Polyethers by Ring-Opening
Polyethers can be made form aldehydes. Aldehyde can form
trimers and tetramers.
Chapter 2 Molecular Weight and Polymer Solutions
Number average and weight average MW
Polymer MW is an average that is expressed in different ways.
Mn = NiMi/Ni
Number average MW
Mw = WiMi /Wi = NiMi2/Ni
Weight average MW
M w > Mn
Mw / M n
Chapter 8 Coordination polymerization
Polypropylene was prepared by this process. Radical
polymerization resulted amorphous structure. Giulio Natta
developed a process to make isotactic PP; Karl Ziegler found similar
way to make HDPE at l
Thermal feel of materials
Why steel feels cooler than wood?
Higher thermal conductivity
Then why new wood feels cooler?
Continuum the normal media
1. Solid and fluid, single phase continuum only approximation;
2. Conversional math and physics models
FABRIC CONSTRUCTION PROPERTIES
Definitions and concepts
A fibrous sheet; a pliable sheet made of fibers
Three major types
Shuttle and projectile looms
Air jet loom
Woven plain weave
Colorfastness color durability.
Colors on textiles do fade.
Color fade caused by many factors.
Colorfastness resistance to
color transfer - containment.
Three essential components in c
Fabric Quality and its Importance
The two major functions of clothing
Protection & Decoration
1-2-1 Clothing as a protective material for human body
- Biologically and physiologically compatible with human body.
Comfort, no hazard, no toxic
Fabric Mechanical Properties
Fabric mechanical properties - the most important properties in
determining fabric performance simply because it has to
be strong enough to resist the force it will encounter in use.
The nature of for
Textile Standards and Standard Testing Methods
2.1 Aims of industrial standardization
A standard: something set up and established by authority
(with general consent) as a measure of
quantity, weight, extent, value, or quality.
Fabric Appearance Retention Properties
Fabric Surface and Appearance
Fabric Surface: hairy, rough, irregular
Fabric weave, Yarn structure
Visual perception and response to fabric surface
Loss of appearance is more often the reason to di
Textile Yarn Performance
The most important property in determining its processability
and the end-use performance of the fabrics.
Any material has to be strong enough to function
Load-Elongation Curve and Breaking Load
Statistics, sampling, data processing
4.3 Application of statistics
Important statistical characteristics
Conclusion and prediction
a. Frequency Distribution and Statistics
Statistics, sampling, data processing
4.1. Introduction of measurement
Repeatability - The same samples tested on one instrument produce data
in good agreement (the same lab);
Reproducibility - The same samples tested on the same