The phrase 'it becomes imperative' is correct and usable in written English.
You can use it to mean that something is necessary or urgently needed - that it is of the utmost importance. For example, "As the situation worsens, it becomes imperative that the government take action immediately."
As a consequence the mass of at least one neutrino has to be different from zero and it becomes imperative to determine its absolute value.
It becomes imperative to relate the information that is available and produced at different scales.
Therefore, it becomes imperative to design new catalysts that are active at low operating temperatures.
As the cost of energy continues to rise, it becomes imperative to save energy and improve overall energy efficiency.
As the size of the Web grows, it becomes imperative to parallelize a crawling process, in order to finish downloading pages in a reasonable amount of time.
In order to develop green transportation system, it becomes imperative to use integrated technologies to achieve reduced emissions and utilize renewable energy.
However, when the analysis is carried out on large scale systems, it becomes imperative to employ a highly accurate computational method in order to obtain reliable values.
It becomes imperative in these conditions to use a more complex nonlinear estimate of the noise equivalent rate developed here for the first time in literature.
It becomes imperative to characterize the fruits with a view of understanding the properties that may affect the design of machines to handle their processing.
Looking at today's Corruption Perceptions Index, it becomes imperative that the anti-corruption initiatives presented at the conference are implemented promptly.
There's no funding for testing that won't produce profits, and then, of course, it becomes imperative that the research results support the efficacy and safety of the corporate product.
