Basic Concept of Polymer Science and Engineering Flashcards

(56 cards)

1
Q

substance composed of macromolecules

A

polymer (iupac definition)

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2
Q

molecule of high
relative molecular mass, the structure of
which essentially comprises the multiple
repetition of units derived, actually or
conceptually, from molecules of low
relative molecular mass

A

macromolecule

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3
Q

The term polymer stems from the _________ roots __________

A

Greek; poly (many) and
meros (part).

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4
Q

designates a
molecule made up by the repetition of some simpler unit called a

A

mer

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5
Q

long-chain molecule that is composed of a large
number of repeating units of identical structure.

A

polymer

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6
Q

Polymers are prepared by joining a large number of small molecules called

A

monomers

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7
Q

Polymer was coined by

A

jons Jacob Berzelius; 1833

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8
Q

Polymer’s Modern definition by

A

Hermann
Staudinger, 1920

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9
Q

The _________ recorded use of
_____________ as
the predominant early
natural plastic

A

Horners Company of
London; horn and tortoiseshell

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10
Q

British explorers
discovered the_________ in
Central America.

A

Ancient
Mayan civilization

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11
Q

The ________ assumed to be
among the first to find an
application for polymers,
as their children were
found playing with balls
made from local rubber
trees.

A

Mayans

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12
Q

uses
rubber gum for
making waterproof
garments

A

Charles Macintosh, 1823

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13
Q

identified a
compound extracted
from wood which he
named ______ .

A

Anselme Payen (1838); cellulose

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14
Q

discovered polystyrene

A

Eduard Simon, 1839

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15
Q

discovered
vulcanization by
combining natural
rubber with _________ and
heating it in 270o F

A

Charles Goodyear, 1839, sulfur

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16
Q

Goodyear patents
the vulcanization of
rubber

A

1844

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17
Q

synthesized
nitrocellulose
(nitrated cellulose)

A

Christian Friedrich
Schonbein, 1846

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18
Q

patents the first thermoplastic
(____________) made by adding
plasticizer to nitrocellulose

A

Alexander Parkes, 1856, Parkesine

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19
Q

produced celluloid from cellulose
nitrate mixed with camphor.

A

Hyatt brothers (John Wesley and Isaiah), 1868

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20
Q

The celluloid was
unstable and subsequently led to the development of

A

cellulose acetate

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21
Q

was the one of
the fist people to create polyvinyl chloride
(PVC).

A

Eugen Baumann, 1872

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22
Q

was developed by
Cross and Bevan

A

Viscose silk (rayon), 1892

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23
Q

_____________produced phenol-formaldehyde, the
first truly synthetic plastic, _________.

A

Leo Baekeland, 1907, Bakelite

24
Q

discovered polyvinyl acetate and
patented the manufacturing process for PVC

A

Fritz Klatte, 1912

25
discovered how to make sheets and adhesives from poly(vinyl chloride)
B. F. Goodrich, 1926
26
The start of vinyl age
1926
27
, the first transparent sticky tape invented in US by 3M Company
Scotch tape, 1930
28
The first industrially practical polyethylene synthesis was discovered (again by accident) in ______by ____________ at the ___________ works in Northwich, England
1933, Eric Fawcett and Reginald Gibson, Imperial Chemical Industries (ICI)
29
in 1933, ___________resins were developed.
Melamine formaldehyde
30
invented polyhexamethylene-adipamide.
Wallace Carothers
31
polyhexamethylene-adipamide was named by Dupont .
nylon
32
produced commercially viable polystyrene.
Wulff Brothers in Germany, 1936
33
patented polyurethane.
Otto Bayer, 1937
34
accidentally discovered polytetra fluroethylene (PTFE),
Roy Plunkett, 1938
35
polytetrafluroethylene (PTFE) was trademarked as
teflon
36
Polyetheylene terephthalate (PET), a saturated polyester patented by
John Rex Whinfield and James Tennant Dickson., 1941
37
the polyethylene bag makes its first appearance
1950s
38
Polyethylene terephthalate beverage bottles introduced
1973
39
First Blue HDPE pressure pipes for potable water introduced into UK.
1980
40
Nanotechnology, AirbusA380, iPod
2000 to 2010
41
Scientists at _______University, Texas have created a new super polymer material that can stop a 9mm bullet and seal the hole behind it
Bullet proof polymer, Rice
42
Developed by the __________ to mimic haemoglobin, for use in trauma situations where blood is needed quickly
University of Sheffield, plastics blood
43
A polymer solar cell that can produce electricity from sunlight by the photovoltaic effect provides a lightweight, disposable and inexpensive alternative to traditional solar panels
Plastic Solar Cells
44
Medical grade and implantable biomaterials such as PEEK will be used in neurological applications to help control epilepsy, Parkinson’s disease and brain trauma
Implantable Polymers
45
Space Flights Lightweight carbon composite materials will be crucial in the realisation of sub-orbital tourist spacefligh
Commercial
46
Body Parts Using plastic materials such as PMMA car parts can be printed at home and doctors can produce replica livers or kidneys for transplant patients
3d printed
47
Organic light-emitting diodes are placed on plastic foil to create electronic devices with flexible displays
Flexible plastic screens
48
In the future all driverless vehicles will be almost entirely constructed from plastic parts due to the light weighting properties they provide
Driverless Cars
49
During the height of COVID-19, plastics companies were called upon to deliver over 50,000 bottles of hand sanitiser per week to the NHS
COVID-19
50
Polymer age will continue as long as ____________ and other feedstocks are available
petroleum
51
Selection involves such consideration as the
material properties service conditions service life; impact on the environment and health and safety; economics; appearance type of production production-related material behavior
52
tragic space shuttle mission that occurred on _________
The Challenger, January 28, 1986
53
The disaster apparently resulted from not choosing quite the
right rubber seal for the fuel system
54
became rigid and lost its resilience/pliability at low temperatures and resulted in fuel seepage
O-ring seal
55
Engineers are responsible to ensure that their choice of material will not endanger the user by, for example, breaking prematurely or by releasing toxic constituents or fail to perform suitably under the real conditions of use.
Assess product liability
56