Methyl methacrylate-centered triads

Table 6.5 Experimental dependences of fractions of triads centered by methyl methacrylate unit and MMA characteristic coefficient (6.15) on monomer feed composition for bulk copolymerization of styrene with methyl methacrylate at T = 60 °C [80]...

Table 3. Correlation of ct-methyl proton resonance patterns observed for styrene-methacrylic acid copolymers with calculated M-centered triad distributions. Data from 100 MHz measurements on copolymers in deuteriopyridine at 70°C...

Table 5. Correlation of aromatic proton resonance patterns of styrene-methyl methacrylate copolymers with calculated styrene centered triad fractions...

Figure 1 shows the 220 MHz PMR spectra of several syndiotactic methacrylic acid(A)-methyl methacrylate(m) copolymers prepared by the hydrolysis of syndiotactic poly(methyl methacrylate). Separate resonances are evident for the a-methyl protons centered in AAA, (MAA+AAM), MAM, AMA, (AMM+MMA) and MMM triads. Depending on reaction conditions, the relative intensities... 

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