Journal of Nanomaterials / 2010 / Article / Tab 1

Research Article

Nanoconjugate Platforms Development Based in Poly( ,L-Malic Acid) Methyl Esters for Tumor Drug Delivery

Table 1

Physical properties of copolymers.

coPMLA-M e 2 5 coPMLA-M e 5 0
H 7 5 H 5 0

Methylation ( a ) (%)20.246.5
𝑀 𝑀   ( b ) 32,60033,100
𝑀 𝑛   ( b ) 26,10024,300
𝑇 π‘š   ( c ) ( ∘ C)174172
𝑇 𝑑   ( d ) ( ∘ C)186198
Microstructure ( e )
Contiguous patches 𝑛 𝑓 Me3.911.8
Contiguous patches 𝑛 𝑔 COOH11.514.5
R0.30.2

( a ) Copolymer composition determined by 1 H NMR; ( b ) Weight- and number-average molecular weight measured by sec-HPLC; ( c ) Melting temperature measured by differential scanning calorimetry; ( d ) Onset decomposition temperature measured at 5% of loss of initial weight; ( e ) 𝑛 𝑓 and 𝑛 𝑔 refer to averaged numbers of methylated and free carboxyl group within homogeneous sequences, respectively, and (R) refers the randomness determined by 1 3 C NMR analysis [11].

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