KR20050056288A - 아크릴아미드계 단량체 및 이를 이용하여 제조된온도감응성 아크릴아미드계 중합체 - Google Patents
아크릴아미드계 단량체 및 이를 이용하여 제조된온도감응성 아크릴아미드계 중합체 Download PDFInfo
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- KR20050056288A KR20050056288A KR1020030089214A KR20030089214A KR20050056288A KR 20050056288 A KR20050056288 A KR 20050056288A KR 1020030089214 A KR1020030089214 A KR 1020030089214A KR 20030089214 A KR20030089214 A KR 20030089214A KR 20050056288 A KR20050056288 A KR 20050056288A
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- acrylamide
- monomer
- dodecyl
- phenylcarbamoyl
- phenyl
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C233/00—Carboxylic acid amides
- C07C233/01—Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms
- C07C233/45—Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms having the nitrogen atom of at least one of the carboxamide groups bound to a carbon atom of a hydrocarbon radical substituted by carboxyl groups
- C07C233/53—Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms having the nitrogen atom of at least one of the carboxamide groups bound to a carbon atom of a hydrocarbon radical substituted by carboxyl groups with the substituted hydrocarbon radical bound to the nitrogen atom of the carboxamide group by a carbon atom of a six-membered aromatic ring
- C07C233/55—Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms having the nitrogen atom of at least one of the carboxamide groups bound to a carbon atom of a hydrocarbon radical substituted by carboxyl groups with the substituted hydrocarbon radical bound to the nitrogen atom of the carboxamide group by a carbon atom of a six-membered aromatic ring having the carbon atom of the carboxamide group bound to a carbon atom of an unsaturated carbon skeleton
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F2/00—Processes of polymerisation
- C08F2/44—Polymerisation in the presence of compounding ingredients, e.g. plasticisers, dyestuffs, fillers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F20/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride, ester, amide, imide or nitrile thereof
- C08F20/02—Monocarboxylic acids having less than ten carbon atoms, Derivatives thereof
- C08F20/52—Amides or imides
- C08F20/54—Amides, e.g. N,N-dimethylacrylamide or N-isopropylacrylamide
- C08F20/56—Acrylamide; Methacrylamide
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
Description
Claims (12)
- 분자간 수소결합을 일으키는 아미드(amide) 그룹, 벤젠 그룹 및 소수성 장쇄 알킬 그룹을 갖는 하기 화학식 1의 아크릴아미드계 단량체:[화학식 1]상기 식에서,R은 H 또는 CH3이고,R'은 Z, , , 또는 인데, Z는 ortho-, meta-, 또는 이고, 여기서 R"는 소수성 장쇄 알킬 그룹으로서 이며, 여기서 m은 10에서 20 사이의 정수이며, Y는 이며, 여기서 n은 10에서 10까지의 정수이며, X는 방향족 그룹으로서 o-페닐렌(ortho-phenylene), m-페닐렌(meta-phenylene), p-페닐렌(para-phenylene), o-나프탈렌(ortho-naphthalene), m-나프탈렌(meta-naphthalene), 또는 안트라센(anthracene) 그룹이다.
- 제1항에 있어서,상기 화학식 1의 아크릴아미드계 단량체가 N-[4-(3-(4-도데실-페닐카르바모일)-프로필)페닐]아크릴아미드 (N-[4-(3-(4-dodecyl-phenylcarbamoyl)-propyl)phenyl] acrylamide, NDPA); (N-[5-(4-도데실-페닐카르바모일)-페닐]아크릴아미드 (N-[5-(4-dodecyl-phenylcarbamoyl)-pentyl]acrylamide, DPPA); N-[3-{(4-도데실-페닐카르바모일)-메틸렌-카르바모일}프로필-4-페닐]아크릴아미드(N-[3-{(4-dodecyl-phenylcarbamoyl)-methylene-carbamoyl}propyl-4-phenyl] acrylamide, DMCPA); 또는 N-[3-{(4-도데실-페닐카르바모일)-펜타메틸렌-카르바모일}프로필-4-페닐]아크릴아미드(N-[3-{(4-dodecyl-phenylcarbamoyl)-pentamethylene-carbamoyl}propyl-4-phenyl] acrylamide, DPMCPA)임을 특징으로 하는 아크릴아미드계 단량체.
- 제1항의 아크릴아미드계 단량체 단독 또는 상기 아크릴아미드계 단량체와 비닐계 단량체의 혼합물로부터 제조됨을 특징으로 하는 아크릴이미드계 중합체.
- 제3항에 있어서.상기 아크릴아미드계 단량체가 N-[4-(3-(4-도데실-페닐카르바모일)-프로필)페닐]아크릴아미드; (N-[5-(4-도데실-페닐카르바모일)-페닐]아크릴아미드; N-[3-{(4-도데실-페닐카르바모일)-메틸렌-카르바모일}프로필-4-페닐]아크릴아미드; 또는 N-[3-{(4-도데실-페닐카르바모일)-펜타메틸렌-카르바모일}프로필-4-페닐]아크릴아미드; 임을 특징으로 하는 아크릴아미드계 중합체.
- 제3항에 있어서,상기 비닐계 단량체가 스티렌, N-이소프로필아크릴아미드(N-isopropyl acrylamide, NIPAM), N,N-디메틸아크릴아미드(N,N-dimethylacrylamide), N,N-에틸메틸아크릴아미드(N,N-ethylmethylacrylamide) 또는 메틸메타크릴레이트(methylmethacrylate) 임을 특징으로 하는 아크릴아미드계 중합체.
- (가) 제1항의 아크릴아미드계 단량체 단독 또는 제1항의 아크릴아미드계 단량체와 비닐계 단량체의 혼합물을 유기용매에 용해하는 단계;(나) 상기 용해한 단량체와 라디칼 개시제를 앰플에 투입하는 단계;(다) 상기 앰플 내의 용액에 존재하는 산소를 동결-해동(freeze-thawing) 방법에 의해 진공펌프로 완전히 제거하는 단계;(라) 상기 산소를 완전히 제거한 앰플을 밀봉하는 단계; 및(마) 상기 밀봉한 앰플을 가열함으로써 라디칼 중합시키는 단계;를 포함하여 이루어짐을 특징으로 하는 아크릴아미드계 중합체의 제조방법.
- 제6항에 있어서,상기 (가) 단계에서 단량체가 제1항의 아크릴아미드계 단량체 단독이거나, 제1항의 아크릴아미드계 단량체와 비닐계 단량체의 혼합물로서 아크릴아미드의 함량이 혼합물 전체에서 10중량% 이상인 경우, THF, 벤젠, 톨루엔 및 자일렌으로 이루어진 군으로부터 선택된 유기용매를 단량체 전체에 대하여 20 내지 80중량%로 사용함을 특징으로 하는 아크릴아미드계 중합체의 제조 방법.
- 제6항에 있어서,상기 (나) 단계에서 라디칼 개시제가 아조비스이소브티로니트릴(azobisisobutyronitrile, AIBN), 벤조일 퍼옥시드(benzoyl peroxide, BPO), 또는 2,2'-아조비스-(2,4-디메틸발러로니트릴) 2,2'-azobis-(2,4-dimethylvaleronitrile)임을 특징으로 하는 아크릴아미드계 중합체의 제조방법.
- 제6항에 있어서,상기 (나) 단계에서 라디칼 개시제를 단량체 전체에 대하여 0.001 내지 2.0중량%로 사용함을 특징으로 하는 아크릴아미드계 중합체의 제조방법.
- 제6항에 있어서,상기 (마)단계에서 라디칼 중합이 60 내지 100℃에서 8 내지 48시간 동안 수행됨을 특징으로 아크릴아미드계 중합체의 제조방법.
- 제6항에 있어서,상기 아크릴아미드계 중합체의 수평균분자량이 3,000 내지 150,000임을 특징으로 하는 아크릴아미드계 중합체의 제조방법.
- 제6항에 있어서,상기 아크릴아미드계 중합체가 벤젠 또는 톨루엔 중 어느 하나의 방향족 유기용매에서 졸-겔 상전이 현상을 나타냄을 특징으로 하는 아크릴아미드계 중합체의 제조방법.
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