Các vật liệu tái tạo trong hoá học xanh (renewable materials in Green chemistry)

L/O/G/O
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VIETNAM NATIONAL UNIVERSITY HOCHIMINH CITY
HOCHIMINH CITY UNIVERSITY OF TECHNOLOGY
FACULTY OF CHEMICAL ENGINEERING
DEPARTMENT OF ORGANIC CHEMICAL ENGINEERING
HCM CITY, 03/2014
Essay “Recent ADVANCES in GREEN CHEMISTRY”:
RENEWABLE MATERIALS
Reporter: Trần Thị Thảo Vy 12144441
Nguyễn Thị Thanh Hường 13051178
Phạm Huỳnh Minh Trang 13050198
Professor: Dr. Phan Thanh Sơn Nam
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Contents
PLA
D
A
B
C
E
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I. What are Polymers?
II. Distinguish between Biodegradation and
Decomposition.
III.Biodegradable Polymers
a) Definition.
b) Classification.
c) Agents and Factors.

IV. Method and Testing Standards
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A large molecule, or macromolecule, composed of
many repeated subunits, known as monomers.
I. What are Polymers?
Wikipedia.org, Polymers.
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Various polymer architectures.
[6]
Wikipedia.org, Polymers.
I. What are Polymers?
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Monomer arrangement in copolymers
I. What are Polymers?
Wikipedia.org, Polymers.
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I. What are Polymers?
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I. What are Polymers?
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I. What are Polymers?
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take millions of years to make more

…so recycle!
I. What are Polymers?
Michael Pitzl, Australian Research Institute for Chemistry and Technology – ofi
CROPACK 2010, Renewable vs. Biodegradable – New materials for packaging technology.
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I. What are Polymers?
A tiny bit of plastic is being made from vegetable organic material, so
that bit is biodegradable, and renewable.
• CO
2
,H
2
O, inorganic
mineral, biomass
• CO
2
, CH
4
, humus
and nontoxic
substances.
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www.basf.com Dec. 09, 2008, YU L. et al 2006
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Biodegradable Polymer
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Note: Biopolymer
I. What are Polymers?
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 Development of the market:
• Capacity 2009 400.000 t worldwide
• Small market, but high growth rates up to 10 %
www.european-bioplastics.org, Feb. 17th, 2010
I. What are Polymers?
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 Composition:
Biopolymer can be made from many different
sources and materials:
– Plant Oil
– Cellulose
– Corn Starch
– Potato Starch
– Sugarcane
– Hemp etc.
I. What are Polymers?
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Plant Oil Starch Cellulose
Corn Sugarcane Potato
C
O
M
P
O
S
I
T
I

O
N
I. What are Polymers?
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 Impermeability
 Optical properties
 Spring
 Seal and easy printing
 Heat and chemical resistance
 Stable, environmentally friendly and competitive price
 In accordance with the requirements of food packaging
I. What are Polymers?
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II. Distinguish between
Biodegradation and Decomposition:
Wt < 500
Microorganism
(bacteria, fungi,
archaeas , and
protists)
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II. Distinguish between
Biodegradation and Decomposition:
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Www.epi-global.com, Epi, Degradability and Biodegradability Claims.
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III.Biodegradable Polymers:

a) Definition
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b) Classification:
 Natural Polymers:
• Polysaccharides (E.g. starch,
cellulose, lignin, chitin)
• Proteins
III.Biodegradable Polymers:
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• Lipids (E.g. animal fat)
• Polyesters produced by microorganism or by plants
(E.g. polyhydroxyalcanoates, poly-3-hydroxybutyrate)
 Natural Polymers:
III.Biodegradable Polymers:
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 Natural Polymers:
III.Biodegradable Polymers:
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 Synthetic Polymers:
• PHAs: Poly-hydroxy-alkanoates
• Polyvinyl alcohols
• PHB: Poly-hydroxy-butyrates
III.Biodegradable Polymers:
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Wikipedia.org, List of Synthetic Polymers.
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 Synthetic Polymers:
• Polyalhydrides
• PBS: Polybutylene succinate
• PCL: Polycaprolactone
• PLA: Poly(lactic acid)
III.Biodegradable Polymers:
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Wikipedia.org, List of Synthetic Polymers.
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c) Agents and Factors:
Polymer
Structure
Morphology
Weight
Microorganism
Enzyme
Mechanics
Heat, Light,
Chemical
III.Biodegradable Polymers:
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