지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2015.1
- 수록면
- 92 - 97 (6page)
이용수
초록· 키워드
오류제보하기
A study on reaction kinetics for a PTMG/TDI prepolymer with 2,2'-dichloro-4,4'-methylenedianiline (MOCA), of which formulations may be generally used for fabricating high performance polyurethane elastomers, was peformed using non-isothermal differential scanning calorimetry (DSC). A number of thermograms were obtained at several constant heating rates, and analysed using Flynn-Wall-Ozawa (FWO) isoconversional method for activation energy, $E_a$ and extended-Avrami equation for reaction order, n. Urea formation reaction of the present system was observed to occur through the simple exothermic reaction process in the temperature range of $100{\sim}130^{\circ}C$ for the heating rate of $3{\sim}7^{\circ}C/min$. and could be well-fitted with generalized sigmoid function. Though activation energy was nearly constant as $53.0{\pm}0.5kJ/mol$, it tended to increase a little at initial stage, but it decreases at later stage by the transformation into diffusion-controlled reaction due to the increased viscosity. Reaction order was evaluated as about 2.8, which was somewhat higher than the generally well-known $2^{nd}$ order values for the various urea reactions. Both the reaction order and reaction rate explicitly increased with temperature, which was considered as the indication of occurring the side reactions such as allophanate or biuret formation.
목차
등록된 정보가 없습니다.
참고문헌 (13)
참고문헌 신청
A. L. Daniel-da-Silva / 2008 / Moisture Curing Kinetics of Isocyanate Ended Urethane Quasi-Prepolymers Monitored by IR Spectroscopy and DSC / J. Appl. Polym. Sci. 107:700
K. Gisselfält / 2003 / Effect of Soft Segment Length and Chain Extender Structure on Phase Separation and Morphology in Poly(urethane urea)s / Macromol. Mater. Eng. 288:265
X.-D. Chen / 2009 / Preparation and properties of cast polyurethane elastomers with molecularly uniform hard segments based on 2,4-toluene diisocyanate and 3,5-dimethylthioltoluene diamine / J. Biomed. Sci. Eng 2:245
D. K. Chattopadhyay / 2007 / Structural engineering of polyurethane coatings for high performance applications / Prog. Polym. Sci 32:352
C. M. Thompson / 1990 / Gel permeation chromatographic analysis of polyurethane prepolymer synthesis kinetics. I. The effect of catalyst / J. Polym. Sci. Part A : Polym. Chem 28:333
K. Gisselfält / 2003 / Effect of Soft Segment Length and Chain Extender Structure on Phase Separation and Morphology in Poly(urethane urea)s / Macromol. Mater. Eng. 288:265
X.-D. Chen / 2009 / Preparation and properties of cast polyurethane elastomers with molecularly uniform hard segments based on 2,4-toluene diisocyanate and 3,5-dimethylthioltoluene diamine / J. Biomed. Sci. Eng 2:245
D. K. Chattopadhyay / 2007 / Structural engineering of polyurethane coatings for high performance applications / Prog. Polym. Sci 32:352
C. M. Thompson / 1990 / Gel permeation chromatographic analysis of polyurethane prepolymer synthesis kinetics. I. The effect of catalyst / J. Polym. Sci. Part A : Polym. Chem 28:333
함께 읽어보면 좋을 논문
논문 유사도에 따라 DBpia 가 추천하는 논문입니다. 함께 보면 좋을 연관 논문을 확인해보세요!
-
Kinetic study of the content of MOCA based on protected PTMG-TDI prepolymer by real-time FT-IR and DSC
한국고분자학회 학술대회 연구논문 초록집
2015 .04
-
A Study on Transformation of Dynamic DSC Results into Isothermal Data for the Formation Kinetics of a PU Elastomer
Elastomers and composites
2018 .01
-
Fast, Sensitive Pathogen-derived RNAs Detection Based on One-pot, Isothermal Reaction
한국생물공학회 학술대회
2022 .09
-
LaMnO<sub>3</sub> 비등온 합성반응의 열적특성
화학공학
2016 .01
-
Proteins Derived from Cnidium officinale Makino React with Serum IgE of Allergic Patients and Stimulate ERK/NF-kB Activation in Human Mast Cell Line HMC-1 Cells
BioChip Journal
2021 .01
-
오존/촉매 산화공정에서 비스페놀 A의 분해와 생성된 과산화수소의 농도 비교
공업화학
2017 .01
-
의약품 원료 DIET 합성 중 H₂O₂를 이용한 붕소제거 반응공정에서의 폭주반응 위험성 평가
한국가스학회지
2018 .08
-
소규모 폴리우레탄 반응공정의 압력방출장치 적정성 검토
한국위험물학회지
2019 .06
-
황 회수 공정 설계에서 부 반응의 영향
플랜트 저널
2017 .01
-
Kinetics and Optimization of Dimethyl Carbonate Synthesis by Transesterification using Design of Experiment
화학공학
2018 .01
-
Effect of Difference in Chemical Structure on Reaction Kinetics of Epoxy Resins
한국고분자학회 학술대회 연구논문 초록집
2022 .04
-
컴팩트 개질기용 수성가스전이 반응에서 Cu-Ce0.8Zr0.2O2 촉매에 Cu 담지량이 미치는 영향
한국수소및신에너지학회논문집
2017 .08
-
Deep Learning Approach for Enzymatic Reaction Feasibility Evaluation
한국생물공학회 학술대회
2023 .04
-
플라즈마 촉매 방식의 ATR 반응 공정
대한기계학회 춘추학술대회
2017 .11
-
Target-induced Isothermal Chain Amplification Reaction for MicroRNA Detection
한국생물공학회 학술대회
2020 .06
-
Density functional theory based study on oxygen reduction reaction and oxygen evolution reaction for electrochemical energy conversion devices
한국에너지학회 학술발표회
2017 .04
-
Reaction mechanism generator를 이용한 고온 환경 에탄 건식 개질 상세 메커니즘 생성 및 검증 연구
한국연소학회지
2025 .03
-
등전환 방법을 이용한 고에너지 물질의 노화 효과 예측
한국추진공학회 학술대회논문집
2017 .05
이 논문의 저자 정보
최근 본 자료
댓글(0)
0