Methoxyethyl methacrylate

Methoxyethyl methacrylate, AL15 2-Methoxyethyl 2-methylpropenoate, AL15... 

The effect of the side chain bulkiness has been further studied on a series of chloro derivatives of poly(ethyl methacrylate)(PEMA). Though poly(2-chloroethyl methacrylate) exhibits69 a pronounced peak at Ty = 117 K, poly(2,2,2-trichloroethyl methacrylate), poly(2,2,2-trichloro-l-methoxyethyl methacrylate), and poly(2,2,2-trichloro-l-ethoxyethyl methacrylate) do not show (Fig. 6) any low-temperature loss maximum above the liquid nitrogen temperature157. However, these three polymers probably display a relaxation process below 77 K as indicated by the decrease in the loss modulus with rising temperature up to 100 K. Their relaxation behavior seems to be similar to that of PEMA rather than of poly(2-chloroethyl methacrylate) which is difficult to explain. 

Fig. 6. Temperature dependence of the shear loss modulus of poly(ethyl methacrylate) (1), poly(2,2,2-trichloroethyl methacrylate) (2), poly(2,2,2-trichloro-l-methoxyethyl methacrylate) (3), and poly(2,2,2-trichloro-ethoxyethyl methacrylate) (4)...

Hydroxyethyl methacrylate Hydroxyethoxyethyl methacrylate Hydroxydiethoxyethyl methacrylate Methoxyethyl methacrylate Methoxyethoxyethyl methacrylate Methoxydiethoxyethyl methacrylate Ethylene glycol dimethacrylate A-Vinyl-l-pyrrohdone A-Isopropyl AAm Vinyl acetate Acrylic acid... 

Poly(2-chloroethyl methacrylate) is more polar than poly(w-propyl methacrylate) due to the chlorine atom on the side of the chain. Similarly, poly(2-methoxyethyl methacrylate) is more polar than poly( -butyl methacrylate). The glass transition temperatures of the more polar polymers are higher. 

The donor element in the ester group of 2-methoxyethyl methacrylate was proved to affect stron y the stereospedficity in the copolymerization of this monomer with methyl methacrylate by t-BuOLi in a non-pdar solvent. The copolymer had higher isotacticity at very low conversion. However, the isotacticity remarkably decreased during the first few percent of conversion, and then the copolymer became rather syndiotactic. The syndiotacticity of the copdymer obtained at high conversion was higher than that of poly(2-methoxyethyl methacrylate) even if the copolymerization was performed at very low 2-methoxyethyl methacrylate/ methyl methacrylate ratio and even up to practically 100 % conversion. 

Partial specific volume of poly(2-methoxyethyl methacrylate)... 

---