No I was thinking of monomers like bio plastics. But sure, biopolymers etc can work too as replacements. Silicon based monomer/polymers are also very promising

No I was thinking of monomers like bio plastics. But sure, biopolymers etc can work too as replacements. Silicon based monomer/polymers are also very promising. Carbon is a small amount of the earth, while silicon is extraordinarily plentiful. Silicone rubbers are probably the most common example. They use silicon instead of carbon for the backbone.