100% de satisfacción garantizada Inmediatamente disponible después del pago Tanto en línea como en PDF No estas atado a nada
Buscado previamente por ti
Principles of Polymer Systems 6th Edition By Ferdinand Rodriguez; Claude Cohen; Christopher K. Ober; Lynden Archer 9781482223781 ALL Chapters .$17.99
Añadir al carrito
Principles of Polymer Systems 6th Edition By Ferdinand Rodriguez; Claude Cohen; Christopher K. Ober; Lynden Archer 9781482223781 ALL Chapters .
Principles of Polymer Systems 6th Edition By Ferdinand Rodriguez; Claude Cohen; Christopher K. Ober; Lynden Archer 9781482223781 ALL Chapters .
Todos para este libro de texto (3)
Escuela, estudio y materia
Principles of Polymer Systems 6th Edition By Ferdi
Todos documentos para esta materia (3)
Vendedor
Seguir
phinta004
Comentarios recibidos
Vista previa del contenido
Solutions Manual For Principles of Polymer Systems 6th
Edition By Ferdinand Rodriguez; Claude Cohen; Christopher K.
Ober; Lynden Archer 9781482223781 ALL Chapters .
a substance that has a molecular structure consisting entirely of a large number of similar units
bonded together; often used in plastics - ANSWER: a polymer
a molecule that can be bonded to other identical molecules to form a polymer - ANSWER: monomer
a polymer whose molecules consist of relatively few repeating units - ANSWER: oligomer
a group at the end of a chain of a molecule, more specifically, a functional group at the end of the
chain of a linear polymer - ANSWER: end group
a polymer consisting of identical monomer units - ANSWER: homopolymer
a polymer made by a reaction of 2 different monomers, with units of more than one kind - ANSWER:
copolymer
what is a natural polymer? list 4 examples - ANSWER: natural polymers are formed in nature and can
often be extracted; there are typically water-based:
1) silk
2) wool
3) DNA
4) cellulose and protein
what is a synthetic polymer? list 4 examples - ANSWER: synthetic polymers are human made
1) nylon
2) polyethylene
3) Teflon
4) epoxy
What is the process of condensation or step growth polymerization? - ANSWER: -occurs when
polymer chains are built up in a stepwise fashion by the random union of monomer molecules to form
dimers, trimers, etc.
-Condensation polymers contain fewer atoms than the monomer because of the formation of
byproducts during the process
What is the process of addition or chain growth polymerization? - ANSWER: -Repeating unit contain
the same number of atoms as the monomer
-Monomer unit in a "chain reaction" with a chemically unstable intermediate, transferring the active
site down the growing chain
What are the 3 main types of addition polymerization techniques? - ANSWER: cationic, radical,
anionic
how do you determine the best addition polymerization technique? - ANSWER: whichever conditions
stabilize the reactive intermediate
what was the first synthetically modified polymer? - ANSWER: rubber
What is the Voluntary Plastic Container Code? - ANSWER: a code established to aid in the
identification of the various types of plastics for recycling
, what do the numbers 1-7 represent on the voluntary plastic container code? - ANSWER: 1) PETE:
poly(ethylene-terephthalate)
2)HDPE: high density poly-ethylene
3) PVC: poly (vinyl chloride)
4)LDPE: low density poly-ethylene
5) PP: polypropylene
6) PS: polystyrene
7) Other: mixed plastics
characteristics to polymers in solid that exhibit no tendency toward crystallinity - ANSWER:
amphorous state
if a molten polymer retains its amphorous nature upon cooling to solid state; molecular motion is
restricted to short range vibrations and rotations - ANSWER: vitrification
in an amphorous state, bulk ______ packing is impossible and it is highly temperature (dependent or
independent) - ANSWER: bulk crystallinity not possible, and highly temperature dependent
what happens to polymers at a high temperature and what phase is it experiencing? - ANSWER:
polymer reaches a "melt phase" where chains can flow freely with respect to each other, giving bulk
properties of viscous liquids
this is the study of flow of a polymer - ANSWER: rheology
applying a force to a sample can lead to _____ which is referred to as rheology - ANSWER:
deformation
application of a force over a short time and distance results in ____, where sample reverts to previous
form - ANSWER: relaxation
term defined where molecules can flow reversibly - ANSWER: elastic reversibility
due to chain entanglement and frictional effects, flowing liquid will be very ____ - ANSWER: viscous
these materials exhibit elasticity and viscous flow - ANSWER: viscoelastic materials
a force applied to 1 side of surface in direction parallel to surface defined as forces per unit surface -
ANSWER: shear (tangential) stress
how does shear stress apply to polymers? - ANSWER: it causes the molecules to flow past each other
such in a molten state
this the amount of deformation of 1 plane with another, denoted as y - ANSWER: shear strain
this is the ratio of shear stress to shear strain, denoted by G - ANSWER: shear modulus
this is the rate at which planes or molecules flow relative to one another, known as the velocity
gradient - ANSWER: shear rate
where shear stress is proportionate to shear rate (this is the ideal) - ANSWER: Newtonian flow
this is where shear stress increases non-linearly with respect to shear rate (less common); as a force is
being applied, the polymer chains begin to thicken - ANSWER: shear thickening
where shear stress increases non-linearly with respect to shear rate; has gel-like properties or high
viscosity at low stress but thin out and become workable when stirred (ex: acrylic paint) - ANSWER:
shear thinning
Los beneficios de comprar resúmenes en Stuvia estan en línea:
Garantiza la calidad de los comentarios
Compradores de Stuvia evaluaron más de 700.000 resúmenes. Así estas seguro que compras los mejores documentos!
Compra fácil y rápido
Puedes pagar rápidamente y en una vez con iDeal, tarjeta de crédito o con tu crédito de Stuvia. Sin tener que hacerte miembro.
Enfócate en lo más importante
Tus compañeros escriben los resúmenes. Por eso tienes la seguridad que tienes un resumen actual y confiable.
Así llegas a la conclusión rapidamente!
Preguntas frecuentes
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
100% de satisfacción garantizada: ¿Cómo funciona?
Nuestra garantía de satisfacción le asegura que siempre encontrará un documento de estudio a tu medida. Tu rellenas un formulario y nuestro equipo de atención al cliente se encarga del resto.
Who am I buying this summary from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller phinta004. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy this summary for $17.99. You're not tied to anything after your purchase.
