PMMA, or polymethyl methacrylate, is a transparent rigid thermoplastic that is a lightweight alternative to glass. It is produced by polymerizing methyl methacrylate monomers. PMMA has excellent clarity, UV resistance, abrasion resistance, hardness, stiffness, and low water absorption. However, it has poor impact resistance, limited chemical resistance, and limited heat resistance. PMMA has various uses in medical, construction, lighting, automotive, electronics, and furniture industries. It is 100% recyclable and used in applications like bone cement, dental prosthetics, and remodeled bones in orthopedics.

1. POLYMETHYL
METHACRYLATE
(PMMA)
BY – RANA SAHA
B.PHARM. 4TH YEAR

2. INTRODUCTION
 PMMA, Polymethyl methacrylate (C5O2H8)n , polymer of methyl methacrylate, is a
transparent rigid thermoplastic (often used in sheet form as a lightweight or
shatter-resistant alternative to glass. ).
 It is also known as acrylic, acrylic glass, or plexiglass as well as by the trade names
Crylux, Plexiglas, Acrylite, Lucite, and Perspex.
 PMMA or poly (methyl 2‐methylpropenoate) is produced from monomer methyl
methacrylate

3. POLYMERIZATION OF PMMA
METHYL
METHACRYLATE
POLYMETHYL
METHACRYLATE
POLYMER

4. PROPERTIES OF PMMA
Transmittance
UV Stability
Surface Hardness
Chemical Resistance

5. ADVANTAGES OF PMMA
Excellent clarity
UV resistant
Good abrasion resistant
Hardness and stiffness is good.
Low water absorption
Flamable, but has low smoke emission
Good track and arc resistant

6. ADVANTAGES

7. LIMITATIONS OF PMMA
Poor impact resistance
UVLimited chemical resistance, prone to attack
organic solvents Stability
Limited heat resistance (80°C)
Cracking under load possible
Poor wear and abrasion resistance

8. USES OF PMMA
Medical and Healthcare
Architecture and Construction
Lighting
Automotive and Transportation
Electronics
Furniture

9. USES OF PMMA

10. USES OF PMMA

11. MEDICAL USES OF PMMA
In orthopaedics, as bone cement
Used to affix implant
Used to remodel lost bones
Used as sealing agents in dentistry
Used in dental prosthesis

12. RECYCLABILITY OF PMMA
 Polymethyl methacrylate is highly biocompatible, 100% recyclable
and non-biodegradable material. PMMA is considered as a group 7
plastic.
 There are several ways to recycle PMMA. Often these recycling
processes involve pyrolysis, in which the PMMA is extremely
heated in the absence of oxygen. Another procedure involves
depolymerization of PMMA using molten lead to obtain the
monomer MMA in a purity >98%.

13. THANK
YOU