What is the glass transition temperature of PMMA?
What is the glass transition temperature of PMMA?
105 °C
The glass transition temperature (Tg) of atactic PMMA is 105 °C (221 °F). The Tg values of commercial grades of PMMA range from 85 to 165 °C (185 to 329 °F); the range is so wide because of the vast number of commercial compositions which are copolymers with co-monomers other than methyl methacrylate.
What is the glass transition temperature of PVC?
Glass Transition Temperature Values of Several Plastics
| Polymer Name | Min Value (°C) | Max Value (°C) |
|---|---|---|
| PVC Rigid | 60.0 | 100.0 |
| PVDC – Polyvinylidene Chloride | -15.0 | -15.0 |
| PVDF – Polyvinylidene Fluoride | -42.0 | -25.0 |
| SAN – Styrene Acrylonitrile | 100.0 | 115.0 |
What is the Tg of polyvinyl acetate?
Polyvinyl alcohol (PVA) is a water-soluble polymer with a glass transition temperature, Tg, of 80°C. Although its name implies a homopolymer structure, the structure of commercial PVA is a copolymer of vinyl alcohol and vinyl acetate as seen in Fig.
What is the transition temperature of vinyl acetate?
Glass Transition Temperature Tg K 298 – 316 308 Molar Heat Capacity Cp J (mol K)-1 113 – 1.25 152 – 161 118 (s) 155 (l,r) Entanglement Molecular Weight Me
What is the glass transition temperature of polymers?
When an amorphous polymer is heated, the temperature at which the polymer structure turns “viscous liquid or rubbery” is called the Glass Transition Temperature, Tg. The value of Tg depends on the mobility of the polymer chain, and for most synthetic polymers lies between 170 K to 500 K.
What are the transition temperatures of glass in Kelvin?
Glass Transition Temperatures Glass Transition Temperatures of Amorphous Polymers in Kelvin Polymer Properties Database Home Index Polymer Chemistry Software Journals About Contact Polymer physics Related Topics: Glass Transition Temperature Group Interaction Modeling of Tg Effect of Molecular Weight on Tg Effect of Pressure on Tg
What’s the difference between PMMA and acrylic glass?
Infobox references. Poly(methyl methacrylate) (PMMA), also known as acrylic, acrylic glass, or plexiglass as well as by the trade names Crylux, Plexiglas, Acrylite, Lucite, and Perspex among several others (see below), is a transparent thermoplastic often used in sheet form as a lightweight or shatter-resistant alternative to glass.