2003
DOI: 10.1016/s0003-2670(02)01514-3
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Continuous wave free precession

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Cited by 37 publications
(66 citation statements)
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“…The curves appear different from each other, depending on reaction time and formulation. This is because the shape of the curves is determined by the reaction system's T 1 and T 2 values, as given by Eqns −(5), which are expected to vary according to the molecular dynamics changes experienced during the polymerization reactions: Ms=M0T2T1+T2 T*=2T1T2T1+T2 T1=T*2MsM0 T2=T*21()MsM0 …”
Section: Methodsmentioning
confidence: 99%
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“…The curves appear different from each other, depending on reaction time and formulation. This is because the shape of the curves is determined by the reaction system's T 1 and T 2 values, as given by Eqns −(5), which are expected to vary according to the molecular dynamics changes experienced during the polymerization reactions: Ms=M0T2T1+T2 T*=2T1T2T1+T2 T1=T*2MsM0 T2=T*21()MsM0 …”
Section: Methodsmentioning
confidence: 99%
“…If the T * value of a given CP‐CWFP curve is determined through a monoexponential fit (Fig. (b)), then both relaxation constants ( T 1 and T 2 ) can be simultaneously extracted at each time interval with the use of Eqns and , enabling the real‐time monitoring of the polymerization reactions.…”
Section: Methodsmentioning
confidence: 99%
“…1,3,13,14 Porém, a quantidade de mucilagem extraída é pequena e, portanto, essa contribuição não é a única responsável pelas diferenças dos rendimentos calculados entre os dois métodos. O teor de óleo das amostras após a extração também pode ter sido superestimado por algum offset no equipamento de RMN, o que provoca um decréscimo no rendimento calculado por esse método.…”
Section: Figura 1 Curvas Analíticas Para As Sementes De Cutieira (I)unclassified
“…Assim, para analisar os componentes líquidos mede-se a intensidade do sinal de decaimento após o completo decaimento do sinal dos sólidos. 1,3,13,14 O sinal da água livre é eliminado secando-se completamente as sementes ou com desidratação parcial, até que reste no máximo 5%, onde o tempo de relaxação da água é bem mais curto que o do óleo. Com isso, só o óleo contribui para o sinal de RMN após alguns milissegundos.…”
Section: Introductionunclassified
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