Ultrafine Nanoparticles of Poly(Methyl Methacrylate-co-Methacrylic Acid) Loaded with Aspirin

Table 1

Average molecular weights of the copolymer in CNP and those of the commercial copolymer.

Sample	(g/mol)	(g/mol)
From copolymerization at 10.1% in conversion	2.17	4.92
At the end of copolymerization (88.2% in conversion)	2.31	5.11
ES-100	0.24	0.40