Trichloroethyl methacrylate

C02CH2CH(CH3)2 - poly(Isobutyl methacrylate) (PIBM) C02C(CH3)3- poly(tert-butyl methacrylate) (PTBM) CO2CH2CCI3- poly(trichloroethyl methacrylate) (PTCEM) CO2CH2CF2 poly(trifluoroethyl methacrylate) (PTFEM) C02CH(CF3)2 poly(hexafluoroisopropyl methacrylate)(PHFIM) CN - poly(methacrylonitrile)(PMCN)... 

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)...

The monomers, N-vinyl carbazole (NVC), methacrylamide (MAM), octadecyl methacrylate (ODMA) and trichloroethyl methacrylate (TCEM) were obtained from Polyscience, Inc. Diphenyl acetylene (DPAE), poly(4-chlorostyrene) (PC1S), poly(butadiene) (PBD), poly(styrene) (PS) were obtained from Aldrich Chemical Co. Poly (vinyl alcohol) (PVA), 99-100% hydrolyzed, was obtained from J. T. Baker Chemical Co. Poly(vinyl pyrrolidone) was obtained from Sigma Chemical Co. 

Poly(trichloroethyl methacrylate) (PTCEM) is a polymer electron resist with a high glass transition temperature, Tg = 126° C. It is soluble in many common organic solvents. The plasma etch rate of the polymer is relatively high (8). In our PDE work, PTCEM has been used as the base polymer. Several monomer/PTCEM mixtures have been evaluated as a PDE. 

M. Kakuchi, S. Sugawara, K. Murase, and K. Matsuyama, Poly (fluoro methacrylate) as highly sensitive, high contrast positive resist, ]. Electrochem. Soc. 124, 1648 (1977). i66j Crosshnked poly(2,2,2 trichloroethyl methacrylate) as a highly sensitive positive elec... 

Poly(trichloroethyl-methacrylate (EBR-1, Toray Industries) -S. COO( n DHzCCIa 5.5x10 138 1.25 30... 

Trichloroethyl methacrylate Alkyl methacrylate Single Tgi transparency II had an alkyl group of methyl, ethyl, -propyl, isopropyl, cyclohexyl, or tetrahydrofiirfuryl Low et al. (1994b)... 

PMMA/PMAA (poly(methacrylic acid) blends exhibited Tg values higher than the Fox equation predictions and also higher than MMA-MAA copolymers of equal composition [783]. Solid state NMR showed homogeneity down to 1 to 2 nm and hydrogen bonding interactions were observed by FTIR. Poly(2,2-dichloroethyl methacrylate) and poly(2,2,2-trichloroethyl methacrylate) showed broad miscibility with conventional poly(alkyl methacrylates) (PMMA,PEMA, PnPMA, PiPMA, poly(cyclohexyl methacrylate), but phase separation with poly(n-hexyl methacrylate) [784]. 

Lipase catalysts have been used for functionalization of polymers. A terminal hydroxy group of poly-(e-CL) was reacted with carboxylic acids using lipase CA catalyst to give end-functionalized polyesters.231 Lipase MM catalyzed the regioselective transesterification of the terminal ester group of oligo (methyl methacrylate) with allyl alcohol.232 In the PPL-catalyzed reaction of racemic 2,2,2-trichloroethyl 3,4-epoxybutanoate with hydroxy-terminated PEG, the... 

Ethyl acrylate Alkyl methacrylate Single Tg II had an alkyl group of chloromethyl, 1-chlcjroethyl, 2-chloroethyl, 2,2-dichloroethyl, 2,2,2-trichloroethyl, or 1,3-difluoroisopropyl Peng et al. (1996)... 

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