At scale, our technique is economically viable on its own (but subsidies would always be nice I suppose). Currently though, we are on a pilot scale so we cannot yet compete on volume, hence our gtm strategy of differentiated hydrogen peroxide products.
Yours is one of the more intriguing startups I've seen. My background is in software and developer advocacy - my job is to figure out how to convince people of true ideas.
I'd like to offer some unconventional advice.
Subsidies hurt the people who take them the most, because they destroy self-confidence (belief in your own efficacy) and undermine self-esteem (knowledge that you have earned your achievements). I'm glad to hear you do not need them.
You have rigorously applied your mind to create an objective good - a new chemical process which will promote human flourishing.
Strike all mentions of the petroleum industry and of toxins. There are two main problems with these.
First, they are not differentiating your product on its essential value, which means every moment spent making the negative case for them is lost to making the positive case for your product.
Second, you are being dishonest and are appealing to emotion. Dishonest because, with doctorates in oncology and chemical engineering, you know words like "toxins" are deeply nuanced; and even in your post to HN, you attack petroleum in one sentence, then mention your products application to plastics in the next. Appealing to emotion because you surely know the public's fear of chemicals is not based in reason.
Next, strike mentions about the expense of peroxides, their dangers, and explosions at peroxide plants. These are not differentiating, unless your go-to-market strategy is fundamentally based on licensing the technology to existing peroxide producers. As a consumer, I perceive peroxides to be so cheap as to be beneath notice - if you mean they are expensive in industrial applications, just talk about that directly. I don't know anything about how to judge the impurities in peroxide - just talk about the value of why purity matters, which I think you do in point 3 (though I'm not sure). And industrial accidents happen - unless your claim is that you are going to put the entire peroxide industry out of business, those explosions are going to continue to happen - instead, talk about why the stability of your product is a value.
Strike the Ode to Clean product, unless it connects with your core go-to-market strategy. It is an incredibly expensive product. You can probably make a lot of money because people make emotional purchasing decisions, but it is also a distraction from the phenomenal applications you mention in your HN post.
