{"id":1265,"date":"2025-06-25T08:41:18","date_gmt":"2025-06-25T08:41:18","guid":{"rendered":"https:\/\/ws-b9o6hg.wpkz.site\/?p=1265"},"modified":"2025-06-25T08:41:21","modified_gmt":"2025-06-25T08:41:21","slug":"environmentally-friendly-mmp-as-a-replacement-for-pma-part-3-other-performance-comparison","status":"publish","type":"post","link":"https:\/\/www.prechems.com\/es\/lab-reports\/environmentally-friendly-mmp-as-a-replacement-for-pma-part-3-other-performance-comparison\/","title":{"rendered":"Environmentally Friendly MMP as a Replacement for PMA (Part 3): Other Performance Comparison"},"content":{"rendered":"

Dise\u00f1o experimental<\/strong><\/h2>\n\n\n\n

By comparing Methyl 3-Methoxypropionate (MMP)\u00a0and Propylene Glycol Methyl Ether Acetate (PMA)\u00a0in terms of tolerance to non-polar solvents, thermal stability, and hydrolysis resistance, this study analyzes their performance differences in formulation systems.<\/p>\n\n\n\n

An\u00e1lisis de datos<\/strong><\/strong><\/h2>\n\n\n\n

Test 1: Tolerance Test for Non-Polar Solvents<\/strong><\/strong><\/p>\n\n\n\n

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1.1 Nitrocellulose + n-Heptane Test<\/strong><\/strong><\/strong><\/p>\n\n\n\n

\"2\"<\/figure>\n\n\n\n

<\/p>\n\n\n\n

Equal masses of MMP and PMA samples were mixed with nitrocellulose (1:1 ratio), dissolved under stirring, then slowly titrated with n-heptane. The weight of n-heptane added at the onset of turbidity was recorded.<\/p>\n\n\n\n

Result<\/strong>: MMP tolerated 35% n-heptane vs. PMA’s 15%.<\/p>\n<\/div>\n\n\n\n

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\u200b\u200b1.2 Nitrocellulose + Toluene Test<\/strong><\/strong><\/p>\n\n\n\n

\"4\"<\/figure>\n\n\n\n

<\/p>\n\n\n\n

Same procedure as 1.1 using toluene.<\/p>\n\n\n\n

Result<\/strong>: MMP tolerated 76% toluene vs. PMA’s 30%.<\/p>\n\n\n\n

1.3 Summary<\/strong><\/strong><\/p>\n\n\n\n

MMP exhibited 2.3\u00d7 higher tolerance to n-heptane and 2.5\u00d7 higher tolerance to toluene than PMA, indicating superior compatibility with non-polar solvents. This enables higher proportions of low-cost solvents in formulations, potentially reducing overall costs.<\/p>\n<\/div>\n <\/div><\/div>\n\n\n\n

Prueba 2: Stability Tests<\/strong><\/strong><\/strong><\/p>\n\n\n\n

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2.1 Thermal Stability<\/strong><\/strong><\/strong><\/p>\n\n\n\n

\"6<\/figure>\n\n\n\n

<\/p>\n\n\n\n

Samples were heated at 50\u00b0C, 70\u00b0C, 80\u00b0C, and 90\u00b0C for 48h and 72h.<\/p>\n\n\n\n

Result:<\/strong>\u00a0MMP and PMA showed comparable thermal stability.<\/p>\n<\/div>\n\n\n\n

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2.2 Hydrolysis Test<\/strong><\/strong><\/p>\n\n\n\n

\"8<\/figure>\n\n\n\n

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Samples with 4% water addition and water-saturated samples were heated at 40\u00b0C for 48h.<\/p>\n\n\n\n

Result<\/strong>: <\/p>\n\n\n\n