Succinimide-based copolymers and their use as hydrate inhibitors
A technology of clathrate hydrate and dimer, applied in chemical instruments and methods, control/regulating process, use of liquid separation agent, etc., can solve the problems of inability to inhibit the formation of clathrate hydrate, imperfection, etc.
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[0090] The following non-limiting examples illustrate the synthesis of copolymers of general formula (I), and also illustrate the methods of the present disclosure. The compounds synthesized are understood to be illustrative in nature and not limited in scope by general formula (I) or the methods described.
example 1
[0091] Example 1: Synthesis of succinimide-based copolymers of general formula (I)
[0092] Materials and methods. where R 1 Yes – (CH 2 ) 4 -, x is 0.5, and y is 0.5, a succinimide-based copolymer of general formula (I) is synthesized according to the following reaction scheme:
[0093]
[0094] More specifically, a succinimide-based copolymer having the general formula (I) was synthesized by grinding L-aspartic acid (about 66.5 g, 0.5 mol) with a mortar and pestle while Concentrated H 2 SO 4 (approximately 3.3 g) was added dropwise to the L-aspartic acid to form a grind mixture. The milled mixture was stirred using a magnetic stir bar in a round bottom flask and heated by an oil bath at about 203°C. After 30 minutes, the milled mixture was cooled to room temperature, ground well, and heated at about 203°C for 7 hours using a silicone oil bath with further stirring. The ground mixture was then cooled to room temperature and filtered while washing with hot water (c...
example 2
[0102] Example 2: Synthesis of succinimide-based copolymers of general formula (I)
[0103] Materials and methods. where R 1 Yes – (CH 2 ) 5 -, x is 0.5, and y is 0.5, a succinimide-based copolymer of general formula (I) is synthesized according to the following reaction scheme:
[0104]
[0105] More specifically, a succinimide-based copolymer having the general formula (I) was synthesized by grinding L-aspartic acid (about 66.5 g, 0.5 mol) with a mortar and pestle while Concentrated H 2 SO 4 (approximately 3.3 g) was added dropwise to the L-aspartic acid to form a grind mixture. The milled mixture was stirred using a magnetic stir bar in a round bottom flask and heated by an oil bath at about 203°C. After 30 minutes, the milled mixture was cooled to room temperature, ground well, and heated at about 203°C for 7 hours using a silicone oil bath with further stirring. The ground mixture was then cooled to room temperature and filtered while washing with hot water (c...
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