Isobomyl methacrylate

Increa sing the bulkiness of the alkyl group from the esterifying alcohol in the ester also restricts the motion of backbone polymer chains past each other, as evidenced by an increase in the T within a series of isomers. In Table 1, note the increase in T of poly(isopropyl methacrylate) over the / -propyl ester and similar trends within the butyl series. The member of the butyl series with the bulkiest alcohol chain, poly(/-butyl methacrylate), has a T (107°C) almost identical to that of poly(methyl methacrylate) (Tg = 105° C), whereas the butyl isomer with the most flexible alcohol chain, poly( -butyl methaciylate), has a T of 20°C. Further increase in the rigidity and bulk of the side chain increases the T. An example is poly(isobomyl methacrylate)... 

Research Focus Synthesis of poly(isobomyl methacrylate-coisobomyl acrylate)-b-methacryloxypropyl-tris(trimethylsiloxy)silane and derivatives as topical cosmetic components having high shine and gloss. 

A 250-ml reactor was charged with isododecane (30 g) and then heated to 90°C and treated with isobomyl acrylate (4.5 g), isobomyl methacrylate (4.5 g), and... 

CHj, CO, CO2. propene, isobutene, dimethyl kelene, acroleih. altyl alcohol, glycidol. glycidyl methyl ether, methyl methacrylate, glycidyl methacrylate, chain fragments distribution varies with copolynrer composition methyl methacr ate, isobomyl methacrylate, camphene. camphene isomers... 

Ageflex IBOMA EINECS 231-403-1 HSDB 6088 Isobomyl methacrylate Methacrylio acid, isobomyl ester 2-Propenoic acid, 2-methyl-, 1,7,7-trimethylbicyclo-(2,2.1)hept-2-yl ester, exo- 2-Propenoic acid, 2-melhyi-, (1R,2R,4R)-1,7,7-trimethylbicyclo(2.2.1)hept-2-yl ester, rel- Sipomei iBOMA exo-... 

Other methacrylates snch as ethyl methacrylate (EtMA), isobomyl methacrylate (/-BMA) and t-bntyl methacrylate (t-BnMA) were successfully polymerised at 35 °C as well (Table 1). For PEtMA and Pt-BuMA, very low polydispersities of 1.15 and 1.14 were obtained. For polymerisations of isobomyl methacrylate, on the other hand, a significantly broader molecular weight distribution of PDI = 2.46 was fonnd. The two acrylates tested, -butyl acrylate ( -BnA) and t-bntyl acrylate (t-BuA), gave very low conversions (Table... 

Chem. Descrip. Isobomyl methacrylate with 150 30 ppm MEHQ inhibitor... 

Octafluoropentylmethacrylate (OFPMA-99% by GC) was purchased fi om PCR Inc. and was distilled before use (bp. 75-80 C). Isobomyl methacrylate (IBOMA-99+% by GC) was purchased from Rohm and Haas and was distilled before use (bp. 70rC/O.lmm Hg). VDMO was purchased from SNPE Inc. and was used as received (purity by GC 95%). T-butylperoctoate (JBO) was purchased from Attochem and was used as received. Octamethylcyclo-tetrasiloxane (D4) and the trifluoropropylmethylcyclotrisiloxane (D3-TFF) were purchased from Hills America and were used as received. The 1,3-bis methacryloylbutyltetramethyl disiloxane (M2) was prepared according to a procedure described in the patent literature (11). All other solvents and reagents were used as received. 

Sipomer iBOMA HP, Sipomer iBOMA. See Isobomyl methacrylate Sipomer iDA. See Isodecyl acrylate Sipomer iDM. See Isodecyl methacrylate Sipomer lOA. See Isooctyl acrylate Sipomer MEM. See Ethyl maleate Sipomer PPGMM. See Propylene glycol methacrylate... 

Generally, in designing resins lower Tg will lead to a lower viscosity of the resins and their solutions. Exceptions have been reported for some high solids acrylic resins made with a comonomer that has a bulky group, such as isobomyl methacrylate (14), have low viscosities at high solids even though they have high Tg values. 

Second virial coefiScient of poly(isobomyl methacrylate)... 

Poly(5-p-menthyl methacrylate) exhibits an intermediate value. It has the most flexible, yet most bulky substituent since no bridging is present. Poly(isobomyl methacrylate) has the lowest Coo value its substituent, which is bridged, is more rigid but smaller than the menthyl group. Poly(l-adamantyl methacrylate) with a doubly bridged ring has the largest C. Probably, the observed C o variations could not be predicted. 

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