Poly(ethyl a-benzoyloxymethylacrylate) (EBMA) and copolymers of methyl methacrylate (MMA) with EBMA have been prepared by free radical polymerization. Monomer precursors of ethyl a-benzoyloxymethylacrylate have likewise been polymerized. Glass transition temperatures (T g ) of homo and copolymers ha
Glass-transition temperature of polydialkyl fumarate copolymers
✍ Scribed by A. H. Al-Arbash; F. A. Elsagheer; A. A. M. Ali; M. Z. Elsabee
- Publisher
- John Wiley and Sons
- Year
- 1999
- Tongue
- English
- Weight
- 154 KB
- Volume
- 37
- Category
- Article
- ISSN
- 0887-624X
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✦ Synopsis
Two dialkyl fumarate monomers were copolymerized with styrene and methyl methacrylate. The reactivity ratios of the monomers were calculated, and the glass transition temperature-composition diagrams for the copolymers were measured. The experimental T g data of the copolymers were fitted to several empirical equations proposed in the literature. A comparison is made between the copolymers and the blends of the corresponding polymers.
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The glass transition temperatures T g of butyl acrylate-methyl methacrylate copolymers obtained by free radical polymerization in 3 and 5 mol/L benzene solution have been measured using differential scanning calorimetry (DSC) and the values have been correlated using Johnston's equation with inter-i
## Abstract Poly(methyl methacrylate‐__ran__‐styrene) copolymers were synthesized under monomer‐starved conditions by emulsion copolymerization. The glass‐transition temperatures (__T__~__g__~'s) of the copolymers were measured by differential scanning calorimetry (DSC) and torsional braid analysis