KR970042398A - Water Soluble Styrene Maleic Acid Copolymer for Concrete Additives - Google Patents

Water Soluble Styrene Maleic Acid Copolymer for Concrete Additives Download PDF

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KR970042398A
KR970042398A KR1019950061221A KR19950061221A KR970042398A KR 970042398 A KR970042398 A KR 970042398A KR 1019950061221 A KR1019950061221 A KR 1019950061221A KR 19950061221 A KR19950061221 A KR 19950061221A KR 970042398 A KR970042398 A KR 970042398A
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South Korea
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maleic acid
acid copolymer
styrene
styrene maleic
concrete
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KR1019950061221A
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Korean (ko)
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KR0141409B1 (en
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김원기
황재현
강인규
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이재복
동양시멘트 주식회사
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    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F222/00Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a carboxyl radical and containing at least one other carboxyl radical in the molecule; Salts, anhydrides, esters, amides, imides, or nitriles thereof
    • C08F222/04Anhydrides, e.g. cyclic anhydrides
    • C08F222/06Maleic anhydride
    • C08F222/08Maleic anhydride with vinyl aromatic monomers
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B24/00Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
    • C04B24/24Macromolecular compounds
    • C04B24/28Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2103/00Function or property of ingredients for mortars, concrete or artificial stone
    • C04B2103/30Water reducers, plasticisers, air-entrainers, flow improvers
    • C04B2103/302Water reducers
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2103/00Function or property of ingredients for mortars, concrete or artificial stone
    • C04B2103/30Water reducers, plasticisers, air-entrainers, flow improvers
    • C04B2103/304Air-entrainers

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

본 발명은 콘크리트 첨가제용 수용성 스티렌 말레인산 공중합체에 관한 것으로서, 더욱 상세하게는 콘크리트 화학 혼화제인 분산제 역할을 하되 스티렌과 말레인산의 공중합비가 특정범위내로 조절되고 또 수평균 분자량이 일정 범위로 조절된 수용성 스티렌 말레인산 공중합체가 황산화되어 있어서, 고성능 공기연행 감수제로 유용하도록 개선된 콘크리트 첨가제용 수용성 스티렌 말레인산 공중합체에 관한 것이다.The present invention relates to a water-soluble styrene maleic acid copolymer for concrete additives, and more particularly, to serve as a dispersant that is a concrete chemical admixture, but the copolymerization ratio of styrene and maleic acid is controlled within a specific range and the number average molecular weight is adjusted to a certain range. The maleic acid copolymer is sulfated, and relates to a water-soluble styrene maleic acid copolymer for concrete additives which has been improved to be useful as a high performance air entrainer.

Description

콘크리트 첨가제용 수용성 스티렌 말레인산 공중합체Water Soluble Styrene Maleic Acid Copolymer for Concrete Additives

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

Claims (17)

콘크리트 첨가제용 스티렌 말레인산 공중합체에 있어서, 황산화 스티렌 1몰에 대하여 무수말레인산이 0.1∼0.9 몰비로 공중합되어 있고 그 수평균 분자량이 500∼20,000인 것을 특징으로 하는 다음 구조식(Ⅰ)로 표시되는 콘크리트 첨가제용 스티렌 말레인산 공중합체.In the styrene maleic acid copolymer for concrete additives, concrete represented by the following structural formula (I) characterized in that maleic anhydride is copolymerized at a molar ratio of 0.1 to 0.9 to 1 mole of styrene sulfate and the number average molecular weight is 500 to 20,000. Styrene maleic acid copolymer for additives. (I) (I) 상기식에서, l은 5∼200의 정수이고, m은 1∼20의 정수이며, n은 1∼5의 정수이고, M1, M2 및 M3는 서로 같거나 다른 것으로서 K, Na, ½Ca2+ 및 NH4B+ 중에서 선택된 것이다.Wherein l is an integer from 5 to 200, m is an integer from 1 to 20, n is an integer from 1 to 5, and M1, M2 and M3 are the same or different and are selected from K, Na, ½Ca2 + and NH4B +. will be. 스리텐 말레인산 공중합체를 제조함에 있어서, 스티렌 1몰에 대해 무수말레인산 0.1∼0.9 몰을 극성용매 중에서 공중합 반응시키되 사슬이동제를 첨가하여 공중합체의 분자량을 500~20,000으로 조절하여서 스티렌-말레인산 공중합체를 제조한 다음 이를 황산화시켜서 다음 구조식(Ⅰ)의 황산화 공중합체를 제조함을 특징으로 하는 콘크리트 첨가제용 스티렌 말레인산 공중합체의 제조방법.In preparing the styrene maleic acid copolymer, 0.1 to 0.9 mol of maleic anhydride is copolymerized with respect to 1 mol of styrene in a polar solvent, and the molecular weight of the copolymer is adjusted to 500 to 20,000 by adding a chain transfer agent to prepare the styrene-maleic acid copolymer. Method of producing a styrene maleic acid copolymer for a concrete additive, characterized in that by preparing and then sulfated to prepare a sulfated copolymer of the following formula (I). (I) (I) 상기식에서, l, m, n, M1, M2 및 M3는 각각 상기 청구 범위 제1항에서 정의한 바와 같다.Wherein l, m, n, M1, M2 and M3 are each as defined in claim 1 above. 제2항에 있어서, 상기 극성용매로는 테트라하이드로퓨란을 사용함을 특징으로 하는 콘크리트 첨가제용 스티렌 말레인산 공중합체의 제조방법.The method for preparing styrene maleic acid copolymer for concrete additives according to claim 2, wherein tetrapolarfuran is used as the polar solvent. 제2항에 있어서, 상기 공중합반응은 80∼150℃온도에서 시행함을 특징으로 하는 콘크리트 첨가제용 스티렌 말레인산 공중합체의 제조방법.The method for preparing styrene maleic acid copolymer for concrete additives according to claim 2, wherein the copolymerization reaction is performed at a temperature of 80 to 150 ° C. 제2항에 있어서, 상기 사슬이동제로는 도데실 어캡탄을 사용함을 특징으로 하는 콘크리트 첨가제용 스티렌 말레인산 공중합체의 제조방법.The method of claim 2, wherein the chain transfer agent is a method for producing a styrene maleic acid copolymer for concrete additives, characterized in that dodecyl acaptan is used. 제2항에 있어서, 상기 황산화는 황산 및 발연황산으로 시행함을 특징으로 하는 콘크리트 첨가제용 스티렌 말레인산 공중합체의 제조방법.The method of claim 2, wherein the sulphation is performed with sulfuric acid and fuming sulfuric acid. 스티렌 말레인산 공중합체를 제조함에 있어서, 스티렌 1몰에 대해 무수말레인산 0.1∼0.9몰을 극성용매 중에서 공중합 반응시키되 사슬이동제를 첨가하여 공중합체의 분자량을 500∼20,000으로 조절하여서 다음 구조식(Ⅰ)의 황산화 공중합체를 제조함을 특징으로 하는 콘크리트 첨가제용 스티렌 말레인산 공중합체의 제조방법.In preparing the styrene maleic acid copolymer, 0.1 to 0.9 mol of maleic anhydride is copolymerized with respect to 1 mol of styrene in a polar solvent, and the molecular weight of the copolymer is adjusted to 500 to 20,000 by adding a chain transfer agent to disperse the sulfuric acid of the following formula (I) Method for producing a styrene maleic acid copolymer for concrete additives, characterized in that to prepare a copolymerization. (I) (I) 상기식에서, l, m, n, M1, M2 및 M3 는 각각 상기 청구범위 제1항에서 정의한 바와 같다.Wherein l, m, n, M1, M2 and M3 are each as defined in claim 1 above. 제7항에 있어서, 상기 황산화는 황산 및 발연황산으로 제조함을 특징으로 하는 콘크리트 첨가제용 스티렌 말레인산 공중합체의 제조방법.The method of claim 7, wherein the sulfidation is made of sulfuric acid and fuming sulfuric acid. 제7항에 있어서, 사기 공기연행제는 빈솔 수지를 사용함을 특징으로 하는 콘크리트 첨가제용 스티렌 말레인산 공중합체의 제조방법.8. The method of claim 7, wherein the fraudulent air entrainer uses Vinsol resin. 제7항에 있어서, 상기 공기연행 감수제는 상기 스티렌 말레인산 공중합체와 빈솔 수지를 사용함을 특징으로 하는 콘크리트 첨가제용 스티렌 말레인산 공중합체의 제조방법.The method of claim 7, wherein the air entraining agent is a styrene maleic acid copolymer for a concrete additive, characterized in that using the styrene maleic acid copolymer and Vinsol resin. 제7항에 있어서, 상기 고성능 공기연행 감수제는 상기 황산화된 스티렌 말레인산 공중합체와 빈솔 수지를 사용함을 특징으로 하는 콘크리트 첨가제용 스티렌 말레인산 공중합체의 제조방법The method of claim 7, wherein the high performance air entraining agent uses the sulfated styrene maleic acid copolymer and the vinsol resin.
KR1019950061221A 1995-12-28 1995-12-28 Aqueous styrene maleic acid copolymer for concrete additives KR0141409B1 (en)

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