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Conjugated Diene Polymer and Process for Production Thereof

A process for producing a conjugated diene polymer composition, which comprises of polymerizing a conjugated diene compound or a conjugated diene compound and an aromatic vinyl compound in a hydrocarbon solvent in the presence of at least one compound selected from the group consisting of organoalkali metals and organoalkaline earth metals as an initiator and then reacting the active end of the resulting polymer with a low molecular compound represented by the following formula (1) or the following formula (2):
(wherein in the formula (1), R1 represents an organic group containing an N atom not adjacent to the N atom of the aminosilyl group and having a molecular weight not greater than 1000, R2 represents a C1-10 hydrocarbon group or a C1-10 hydrocarbon group having no active hydrogen and substituted with an Si, O, N or S atom, R3 and R4 each independently represents a C1-20 alkyl group or aryl group, R5, R6, and R7 each represents a C1-20 alkyl group or aryl group or a C1-12 alkoxy group and g stands for an integer from 1 to 3, and
    • in the formula (2), R8 and R9 each represents a C1-10 hydrocarbon group, a C1-10 hydrocarbon group having no active hydrogen and substituted with an Si, O, N or S atom, or an organic group containing an N atom not adjacent to the N atom of an aminosilyl group and having a molecular weight not greater than 1000, and R3, R4, R5, R6, R7 and g have the same meanings as defined in the formula (1)).
Owner:SHIN ETSU CHEM IND CO LTD +1

Remote-sensing wild automatic monitoring system and method for shallow lakes

The invention discloses a remote-sensing wild automatic monitoring system and method for shallow lakes. The system comprises a supporting platform, a power supplying system, a data acquisition system, a data transmission system and a data center, wherein the supporting platform comprises a platform supported by a plurality of piles and an instrument room established on the platform; the power supplying system is used for supplying power to the data acquisition system and the data transmission system; the data acquisition system comprises a weather sensor, a hydrological sensor, a water quality sensor, a water surface imaging spectrum acquisition system, an underwater optical field simultaneous monitoring system and a camera; the data transmission system is connected with the data acquisition system and is used for transmitting various types of lake water color remote sensing information acquired by the data acquisition system to the data center. The system and the method disclosed by the invention are suitable for carrying out remote-sensing wild monitoring and researches of lake water color and algae bloom in regions in which the sites of algae bloom in an eutrophicated lake are relatively fixed and frequency of algae bloom is high.
Owner:NANJING INST OF GEOGRAPHY & LIMNOLOGY
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