KR102167122B1 - 변성 공액디엔계 중합체 및 이를 포함하는 고무 조성물 - Google Patents
변성 공액디엔계 중합체 및 이를 포함하는 고무 조성물 Download PDFInfo
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- KR102167122B1 KR102167122B1 KR1020180150920A KR20180150920A KR102167122B1 KR 102167122 B1 KR102167122 B1 KR 102167122B1 KR 1020180150920 A KR1020180150920 A KR 1020180150920A KR 20180150920 A KR20180150920 A KR 20180150920A KR 102167122 B1 KR102167122 B1 KR 102167122B1
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- FZLHAQMQWDDWFI-UHFFFAOYSA-N 2-[2-(oxolan-2-yl)propan-2-yl]oxolane Chemical compound C1CCOC1C(C)(C)C1CCCO1 FZLHAQMQWDDWFI-UHFFFAOYSA-N 0.000 description 3
- IWFOLKIVFBVTRW-UHFFFAOYSA-N 3-[diethoxy(methyl)silyl]-N-[3-[diethoxy(methyl)silyl]propyl]-N-trimethylsilylpropan-1-amine Chemical compound C(C)O[Si](CCCN([Si](C)(C)C)CCC[Si](C)(OCC)OCC)(C)OCC IWFOLKIVFBVTRW-UHFFFAOYSA-N 0.000 description 3
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
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- LCGLNKUTAGEVQW-UHFFFAOYSA-N Dimethyl ether Chemical compound COC LCGLNKUTAGEVQW-UHFFFAOYSA-N 0.000 description 3
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- 229910052782 aluminium Inorganic materials 0.000 description 3
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Abstract
Description
도 1은, 본 발명의 일 실시예에 따른 실시예 1의 변성 공액디엔계 중합체의 겔 투과 크로마토그래피(GPC, Gel permeation chromatography)에 의한 분자량 분포 곡선을 나타낸 것이다.
도 2는, 본 발명의 일 실시예에 따른 실시예 4의 변성 공액디엔계 중합체의 겔 투과 크로마토그래피(GPC, Gel permeation chromatography)에 의한 분자량 분포 곡선을 나타낸 것이다.
도 3은, 본 발명의 일 실시예에 따른 비교예 1의 변성 공액디엔계 중합체의 겔 투과 크로마토그래피(GPC, Gel permeation chromatography)에 의한 분자량 분포 곡선을 나타낸 것이다.
도 4는, 본 발명의 일 실시예에 따른 참조예 1의 변성 공액디엔계 중합체의 겔 투과 크로마토그래피(GPC, Gel permeation chromatography)에 의한 분자량 분포 곡선을 나타낸 것이다.
도 5는, 본 발명의 일 실시예에 따른 참조예 2의 변성 공액디엔계 중합체의 겔 투과 크로마토그래피(GPC, Gel permeation chromatography)에 의한 분자량 분포 곡선을 나타낸 것이다.
구분 | 실시예 | 비교예 | |||||
1 | 2 | 2 | 4 | 5 | 6 | ||
반응조건 | 개시제 | a | a | b | a | a | b |
변성제 또는 커플링제 | A | B | E | A | - | A | |
제1 반응기 온도(℃) | 50 | 50 | 55 | 75 | 50 | 50 | |
제1 반응기 중합 전환율(%) | 43 | 45 | 48 | 73 | 45 | 45 | |
NMR (중량%) |
SM | 10 | 10 | 10 | 10 | 10 | 10 |
Vinyl | 38 | 38 | 38 | 38 | 38 | 38 | |
GPC | Mw(X103 g/mol) | 465 | 476 | 481 | 604 | 456 | 490 |
Mn(X103 g/mol) | 310 | 315 | 310 | 305 | 310 | 310 | |
PDI | 1.50 | 1.51 | 1.55 | 1.98 | 1.47 | 1.50 | |
C.N. | 1.79 | 1.70 | 1.50 | 1.60 | - | 1.80 | |
분자량 분포 곡선 | 유니모달 | 유니모달 | 유니모달 | 유니모달 | 유니모달 | 유니모달 | |
무니점도(MV) | 56 | 56 | 58 | 60 | 52 | 56 | |
무니 완화율 | 1.134 | 1.108 | 1.135 | 0.589 | 1.031 | 1.130 | |
수축인자(g') | 1.088 | 1.050 | 1.127 | 0.547 | 1.015 | 1.033 | |
Si 함량(ppm) | 230 | 220 | 30 | 175 | - | 220 | |
N 함량(ppm) | 165 | 120 | - | 125 | 60 | 120 |
구분 | 실시예 | 참조예 | 비교예 | ||||
3 | 4 | 1 | 2 | 1 | 3 | ||
반응조건 | 개시제 | a | a | a | a | a | b |
변성제 또는 커플링제 | C | D | D | D | D | E | |
제1 반응기 온도(℃) | 50 | 50 | 50->80 | 50->80 | 50->80 | 55 | |
제1 반응기 중합 전환율(%) | 45 | 45 | - | - | - | 48 | |
NMR (중량%) |
SM | 21 | 21 | 21 | 21 | 21 | 21 |
Vinyl | 50 | 50 | 50 | 50 | 50 | 50 | |
GPC | Mw(X103 g/mol) | 482 | 450 | 264 | 560 | 453 | 468 |
Mn(X103 g/mol) | 315 | 310 | 220 | 400 | 310 | 310 | |
PDI | 1.53 | 1.45 | 1.20 | 1.40 | 1.46 | 1.51 | |
C.N. | 1.70 | 1.20 | 1.00 | 2.00 | 1.94 | 1.51 | |
분자량 분포 곡선 | 유니모달 | 유니모달 | 유니모달 | 유니모달 | 바이모달 | 유니모달 | |
무니점도(MV) | 57 | 55 | 43 | 63 | 58 | 55 | |
무니 완화율 | 1.155 | 1.44 | 1.013 | 1.083 | 1.023 | 1.001 | |
수축인자(g') | 1.091 | 1.088 | 1.009 | 1.075 | 1.015 | 1.095 | |
Si 함량(ppm) | 215 | 118 | 110 | 50 | 110 | 30 | |
N 함량(ppm) | 110 | 55 | 50 | 35 | 48 | - |
구분 | 원료 | 함량(중량부) |
제1단 혼련 | 고무 | 100 |
실리카 | 70 | |
커플링제(X50S) | 11.2 | |
공정유 | 37.5 | |
아연화제 | 3 | |
스테아르산 | 2 | |
산화 방지제 | 2 | |
노화 방지제 | 2 | |
왁스 | 1 | |
제2단 혼련 | 황 | 1.5 |
고무촉진제 | 1.75 | |
가황촉진제 | 2 |
구분 | 실시예 | 비교예 | |||||
1 | 2 | 2 | 4 | 5 | 6 | ||
인장특성 | 인장강도(kgf/cm2) | 165 | 162 | 162 | 160 | 161 | 161 |
300% 모듈러스(kgf/cm2) | 111 | 109 | 85 | 103 | 89 | 102 | |
점탄성 특성 | tan δ(at 0℃) | 103 | 101 | 100 | 100 | 98 | 100 |
tan δ(at 60℃) | 130 | 127 | 100 | 121 | 110 | 115 | |
가공성 특성 | 81 | 79 | 68 | 88 | 83 | 83 |
구분 | 실시예 | 참조예 | 비교예 | ||||
3 | 4 | 1 | 2 | 1 | 3 | ||
인장특성 | 인장강도(kgf/cm2) | 173 | 170 | 155 | 157 | 160 | 171 |
300% 모듈러스(kgf/cm2) | 128 | 115 | 103 | 105 | 120 | 98 | |
점탄성 특성 | tan δ(at 0℃) | 101 | 100 | 100 | 99 | 101 | 100 |
tan δ(at 60℃) | 126 | 118 | 108 | 103 | 115 | 100 | |
가공성 | 81 | 80 | 97 | 94 | 92 | 71 |
Claims (12)
- 겔 투과 크로마토그래피(GPC, Gel permeation chromatography)에 의한 분자량 분포 곡선이 유니모달(unimodal) 형태를 갖고,
분자량 분포(PDI; MWD)가 1.0 이상 1.7 미만이고,
점도 검출기를 구비한 겔 투과 크로마토그래피-광산란법 측정에 의해 구해지는 수축인자가 1.0 내지 3.0이고,
커플링 수(C.N.)가 1<C.N.<F이며, 여기에서 F는 변성제의 관능기 수인 것이고,
일 말단에 하기 화학식 1로 표시되는 변성 개시제 유래 작용기를 포함하며, 다른 일 말단에 하기 화학식 2 또는 화학식 3으로 표시되는 변성제 유래 작용기를 포함하는 변성 공액디엔계 중합체:
[화학식 1]
상기 화학식 1에서,
R1 내지 R5, Ra 및 Rb는 서로 독립적으로 수소; 탄소수 1 내지 20의 알킬기; 탄소수 3 내지 20의 시클로알킬기; 탄소수 6 내지 20의 아릴기; 탄소수 7 내지 20의 아릴알킬기; 탄소수 7 내지 20의 알킬아릴기; 또는 헤테로원자를 포함하는 탄소수 1 내지 20의 헤테로알킬기이고,
n은 0 내지 3의 정수이고,
[화학식 2]
상기 화학식 2에서,
R20 및 R23은 서로 독립적으로 단일결합, 또는 탄소수 1 내지 10의 알킬렌기이고,
R21 및 R22은 서로 독립적으로 탄소수 1 내지 10의 알킬기이고,
R24는 수소, 탄소수 1 내지 10의 알킬기 또는 탄소수 1 내지 10의 알킬기로 치환된 트리알킬실릴기이고,
a는 1 내지 3의 정수이고,
c는 1 내지 3의 정수이고 b는 0 내지 2의 정수이되, b+c=3이며,
[화학식 3]
상기 화학식 3에서,
A1 및 A2는 서로 독립적으로 탄소수 1 내지 20의 알킬렌기이고,
R25 내지 R28은 서로 독립적으로 탄소수 1 내지 20의 알킬기이고,
L1 내지 L4는 서로 독립적으로 탄소수 1 내지 10의 알킬기로 치환된 트리알킬실릴기, 또는 탄소수 1 내지 20의 알킬기이다.
- 청구항 1에 있어서,
상기 화학식 1에서,
R1은 탄소수 1 내지 10의 알킬기이고,
R2 내지 R5, Ra 및 Rb는 서로 독립적으로 수소 또는 탄소수 1 내지 10의 알킬기인 변성 공액디엔계 중합체.
- 청구항 1에 있어서,
상기 화학식 2에서,
R20 및 R23은 서로 독립적으로 단일결합, 또는 탄소수 1 내지 5의 알킬렌기이고,
R21 및 R22은 서로 독립적으로 탄소수 1 내지 5의 알킬기이고,
R24는 수소, 탄소수 1 내지 5의 알킬기 또는 탄소수 1 내지 5의 알킬기로 치환된 트리알킬실릴기인 것인 변성 공액디엔계 중합체.
- 청구항 1에 있어서,
상기 화학식 3에서,
A1 및 A2는 서로 독립적으로 탄소수 1 내지 10의 알킬렌기이고,
R25 내지 R28은 서로 독립적으로 탄소수 1 내지 10의 알킬기이고,
L1 내지 L4는 서로 독립적으로 탄소수 1 내지 5의 알킬기로 치환된 트리알킬실릴기, 또는 탄소수 1 내지 10의 알킬기인 것인 변성 공액디엔계 중합체.
- 청구항 1에 있어서,
상기 변성 공액디엔계 중합체는 수평균 분자량(Mn)이 1,000 g/mol 내지 2,000,000 g/mol이고, 중량평균 분자량(Mw)이 1,000 g/mol 내지 3,000,000 g/mol인 변성 공액디엔계 중합체.
- 청구항 1에 있어서,
상기 변성 공액디엔계 중합체는 Si 함량 및 N 함량이 각각 중량을 기준으로 50 ppm 이상인 것인 변성 공액디엔계 중합체.
- 청구항 1에 있어서,
상기 변성 공액디엔계 중합체는 100℃에서 측정된 무니완화율이 0.7 이상 3.0 이하인 것인 변성 공액디엔계 중합체.
- 삭제
- 삭제
- 청구항 1에 기재된 변성 공액디엔계 중합체 및 충전제를 포함하는 고무 조성물.
- 청구항 10에 있어서,
상기 고무 조성물은 상기 변성 공액디엔계 중합체 100 중량부에 대하여, 0.1 중량부 내지 200 중량부의 충전제를 포함하는 것인 고무 조성물.
- 청구항 10에 있어서,
상기 충전제는 실리카계 충전제 또는 카본블랙계 충전제인 고무 조성물.
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