Cleaning compositions having polyoxyalkylene oxide-terminated polyalkylene oxide-polycarboxylate comb polymers
A technology of cleaning composition and polymer, applied in the field of cleaning composition
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[0038] The method for preparing the polyalkylene glycol-based monomer is not particularly limited, and any suitable preparation method may be used. Examples of simple preparation methods include the sequential addition of C 2 Alkylene oxide and C 3-4 methods of alkylene oxides; and methods comprising reacting unsaturated halogen compounds such as (meth)allyl chloride or isoprene chloride with monoalkoxyalkylene glycols. The addition reaction of alkylene oxide to a hydrogen group can be carried out under generally known reaction conditions implemented by those skilled in the art.
[0039] Monomers and structural units containing carboxyl groups
[0040] The plurality of structural units in the polyalkylene glycol-based polymer also includes carboxyl group-containing structural units derived from one or more carboxyl group-containing monomers. A carboxyl group-containing monomer is a monomer containing (1) an unsaturated double bond and (2) a carboxyl group or a carboxylate....
example
[0113] Hereinafter, the present invention is described in more detail based on examples. It should be understood that these examples are intended to be illustrative only, and not to limit the scope of the claims. All parts are by weight unless otherwise indicated, and all percentages are by mass unless otherwise indicated.
[0114] Monomers and intermediates were quantified by the methods described below, and various characteristic values were measured.
[0115] Weight average molecular weight (M) using gel permeation chromatography (GPC) W ) and number average molecular weight (M N ) measurement conditions are as follows:
[0116] Measuring device: L-7000 series (product of Hitachi Ltd.)
[0117] Detector: HITACHI RI detector, L-7490
[0118] Column: SHODEX Asahipak GF-310-HQ, GF-710-HQ, GF-1G 7B (product of Showa Denko K.K.)
[0119] Column temperature: 40°C
[0120] Flow rate: 0.5mL / min
[0121] Calibration curve: polyethylene glycol standard (product of GL Scienc...
example 1
[0141] In a 500 mL separable glass flask equipped with a reflux condenser and a stirrer, pure water (58.6 g) and Morse's salt (0.0017 g) were stirred while heating to 70 °C. To the mixture, 80% acrylic acid aqueous solution (hereinafter referred to as 80%AA) (65.0 g), 80% propylene oxide aqueous solution (5 moles isoprenol adduct-20 moles ring Ethylene oxide adduct, hereinafter referred to as 80% IPN20EO5PO) (43.3 g), 15% sodium persulfate (hereinafter referred to as 15% NaPS) (25.0 g) and 15% sodium bisulfite (hereinafter referred to as 15% SBS ) (10.7g).
[0142] The dropping times of 80%AA, 80%IPN20EO5PO, 15%NaPS and 15%SBS were 180 minutes, 150 minutes, 190 minutes and 180 minutes, respectively. Simultaneously, dropwise addition of each solution was started. The temperature was adjusted to 70 °C until the addition of 15% NaPS was completed. After completing the dropwise addition of 15% NaPS, the resulting solution was re-aged at the same controlled temperature for 30 mi...
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