2.2.2- Trifluoroethyl methacrylate

CR-39 has been copolymerized with benzyl methacrylate and triaHyl cyanurate, also with benzyl methacrylate [2495-37-6] and diaHyl phthalate (24), and with trifluoroethyl methacrylate by a two-step process (25). 

Table IV compares the X-ray exposure characteristics (at 8.3 X, Al Kai,2 emission line) of the halogenated resists and of PMMA Elvacite 20U1. It can be seen that poly(2-ehloroethyl methacrylates) and poly(2-bromoethyl methacrylates) exhibit a low sensitivity unlike poly(2-fluoroethyl methacrylates) and poly(2-, 2-,2-trifluoroethyl methacrylates) which are more sensitive than PMMA as shown in Figures 2a, 2b, 2c, 2d where the dose-thickness curves of these resists are plotted. The low sensitivity of the PC1EMA and PBrEMA samples may be explained by some competing crosslinking reactions which could occur during exposure as a result of C-Cl and C-Br homolytic bond scissions as noted by Tada...

Separation of Fluoroethanol/Water Mixtures by Pervaporation 2,2,2,-trifluoroalcohol (TFEA) is used for obtaining 2,2,2-trifluoroethyl 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)... 

High refractive index optical lenses were prepared by Your et al. (1) consisting of trifluoroethyl methacrylate, butyl acrylate, phenyl ethyl acrylate, and ethylene glycol dimethacrylate. 

ABS polymers terminated with HD-AO moiety RS- were prepared by means of polymerization of butadiene, styrene and acrylonitrile in the presence of tert-dodecylmercaptan [70]. Syner m with phenolic AO was observed. A radical copolymer active as a thermostabilizer for fluoroalkyl methacrylates [71], was prepared from methyl methacrylate (MMA), 2,2,2-trifluoroethyl methacrylate and pentaerythritol tetrakisfthioglycolate). 

Poly(trifluoroethyl methacrylate) Poly[oxy(methyl n-hexylsilylene)] Poly[oxy(methyln-octadecylsilylene)] Poly[oxy(methyl n-octylsilylene)]... 

Poly(acrylates) and (alkyl acrylates). - Structured nanopore films of poly(styrene-block-methyl methacrylate) copolymers have been made with controlled spectral sensitivity, such that each block is sensitive to a specific degradation wavelength. In copolymers of 2,2,2-trifluoroethyl methacrylate with vinyl ethers, the photosensitivity is controlled by the vinyl ether units. Photodegradation occurs at the tertiary positions of the ether units followed by lactone formation and chain scission processes. Furthermore, the fluorinated side chains have been found to inhibit cyclization reactions. 

Poly [2-(A/ A-dimethylamino)ethyl methaciylate-Z>-(2,2,2-trifluoroethyl methacrylate)] water 2009LI1... 

In this section, we describe the optical oxygen-sensing properties of platinum porphyrin in new fluoropolymer films (poly(isobutylmethacrylate-co-2,2,2-trifluoroethyl-methacrylate) (poly-IBMm-co-TFEM ) [62], poly(styrene-co-2,2,2-trifluoroethylmethacrylate) (poly-Stym-co-TFEM ) [63] and poly(sty-rene-co-pentafluorostyrene) (polySty -co-PFS ) [64] (chemical structures are shown in Fig. 10-2 for the synthesis of the copolymers see Experiment 10-2, Sections 10.1.5). 

Table 1 shows the Q and e values and the monomer reactivity ratios rj and T2 for the radical copolymerization process. Since the monomer reactivity ratios between negatively birefringent methyl methacrylate (MMA) and positively birefringent 2,2,2-trifluoroethyl methacrylate (3FMA) and benzyl methacrylate (BzMA) are nearly equal to unity, these monomers can be randomly copolymerized, resulting in homogeneous and transparent copolymers. 

Propenoic acid, 2-methyl-, 2,2,2-trifluoroethyl ester. See Trifluoroethyl methacrylate 2-Propenoic acid, 2-methyl-, 3-(trimethoxysilyl) propyl ester. See 3-Methacryloxypropyltrimethoxysilane... 

Strontium fluoride Strontium molybdate 2,2,2-Trifluoroethyl acrylate Trifluoroethyl methacrylate optical brightener mfg. 

Methyl methacrylate-ct -ttifluoroethyl methacrylate Hexafluoropropene-c< -vinylidene fluoride Single Tg I had 33 or 66 mol% trifluoroethyl methacrylate II had 10 or 20 mol% hexafluoro[ opene Jauannet et al. (1997)... 

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