<P> In 1998, the U.S. Consumer Product Safety Commission (CPSC) arrived at a voluntary agreement with manufacturers to remove phthalates from PVC rattles, teethers, baby bottle nipples and pacifiers . </P> <P> Plasticized PVC is a common material for medical gloves . Due to vinyl gloves having less flexibility and elasticity, several guidelines recommend either latex or nitrile gloves for clinical care and procedures that require manual dexterity and / or that involve patient contact for more than a brief period . Vinyl gloves show poor resistance to many chemicals, including glutaraldehyde - based products and alcohols used in formulation of disinfectants for swabbing down work surfaces or in hand rubs . The additives in PVC are also known to cause skin reactions such as allergic contact dermatitis . These are for example the antioxidant bisphenol A, the biocide benzisothiazolinone, propylene glycol / adipate polyester and ethylhexylmaleate . </P> <P> PVC is made from petroleum . The production process also uses sodium chloride . Recycled PVC is broken down into small chips, impurities removed, and the product refined to make pure white PVC . It can be recycled roughly seven times and has a lifespan of around 140 years . </P> <P> In the UK, approximately 400 tonnes of PVC are recycled every month . Property owners can recycle it through nationwide collection depots . The Olympic Delivery Authority (ODA), for example, after initially rejecting PVC as material for different temporary venues of the London Olympics 2012, has reviewed its decision and developed a policy for its use . This policy highlighted that the functional properties of PVC make it the most appropriate material in certain circumstances while taking into consideration the environmental and social impacts across the whole life cycle, e.g. the rate for recycling or reuse and the percentage of recycled content . Temporary parts, like roofing covers of the Olympic Stadium, the Water Polo Arena, and the Royal Artillery Barracks, would be deconstructed and a part recycled in the Vinyloop process . </P>

Draw the structure of the monomer that is used to make polyvinyl chloride