Abstract: An amphiphilic polymer having the following formula (I): wherein Z is a hydroxyl-substituted aliphatic group derived from a sugar moiety and having formula (Z1) or (Z2): wherein R11 and R21 are independently hydrogen, hydroxyl, hydroxymethyl, methyl, or a C1-C20 alkyl group; R12, R13, R14, R22, R23, and R24 are independently hydrogen, hydroxyl, or a sugar moiety; X is a C1-C6 divalent aliphatic group; and Y is a biodegradable polyester block having a repeating unit represented by the following formula (II): wherein, in each repeating unit, R is hydrogen or a C1-C18 alkyl group, m is an integer ranging from 0 to 5, and n is an integer ranging from 10 to 300. A method for preparing the amphiphilic polymer is also disclosed.

Abstract: Carbon dioxide contained within exhaust gas is combined with bivalent metal ions such as calcium ions or the like in concentrated salt water to form precipitated calcium carbonate and then can be expelled out. Such an environmental friendly design is realized by a bottle upside down device with a bottle neck exit on a bottom, a piston inside the device can be elevated to a top portion to produce a near vacuum air pressure inside the device. All the brine, exhaust gas, and oxygen, ozone draw together into the device can be accelerated to form, at least, precipitated calcium carbonate to reduce carbon dioxide contained within the exhaust gas. Chemical reaction accelerated by a high voltage discharger below the piston, by flashing a portion of water to atomize the brine. Or a heater can heat up the near vacuum device to accelerate chemical reaction.