Sun, Bin published the artcileSynthesis and evaluation of alkyl methacrylate-norbornene anhydride copolymers with various pendants as pour point depressants for soybean biodiesel-diesel blends, SDS of cas: 142-90-5, the main research area is alkyl methacrylate norbornene copolymer biodiesel diesel pour point depressant.
Adding more biodiesel in petrochem. diesel is one of the effective methods to alleviate the global petrochem. energy shortage, but the high-proportional biodiesel-diesel blends are always limited by the poor cold flow properties. To address this issue, a series of alkyl methacrylate-norbornene anhydride copolymers (CnMC-NA, n = 12, 14, 16, 18) with different molar ratios were synthesized as pour point depressants for B30 (30 vol% biodiesel + 70 vol% diesel). Results showed that C14MC-NA (6:1) presented the best depressive effects at 0.2 wt% dosage, and the cloud point (CP), cold filter plugging point (CFPP) and pour point (PP) of B30 have reduced by 3, 9 and 10 °C, resp. To further improve their depressive efficiency, nine kinds of alcs. were optimized and grafted modification with C14MC-NA (6:1). The effect of these alcoholysis modified copolymers on CP, CFPP and PP of B30 were systematic researched. Results indicated that long-chain alcs. modified C14MC-NA exhibited better depressive effects on B30 than that of aromatic alcs. and short-chain alcs. Among that, C14MC-NA-C14at 0.15 wt% dosage exhibited the best reduction on CP, CFPP and PP of B30 by 5, 12 and 15 °C, resp. Addnl., the mechanism was discussed by polarizing optical microscopy, rheol. anal., differential scanning calorimeter and low-temperature x-ray diffractometer.
Fuel published new progress about Biodiesel fuel. 142-90-5 belongs to class esters-buliding-blocks, name is Dodecyl 2-methylacrylate, and the molecular formula is C16H30O2, SDS of cas: 142-90-5.
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics