The evaluation of poly(limonene carbonate)s (PLCs), derived from orange oils and carbon dioxide, as UV-curable (powder) coating binders is described. PLCs with moderate molecular weight were prepared by copolymerization limonene oxide CO2 a subsequent reduction step transcarbonation 1,10-decanediol (1,10-DCD). These cured trifunctional thiol monomer in the presence photoinitiator via thiol-ene ...

سابقه و هدف: امروزه با گسترش فعالیت واحدهای صنعتی، غلظت آلاینده­ ها در هوا افزایش یافته انسان­ از طریق تنفس، بلعیدن جذب پوستی معرض آن­ها قرار می­ گیرند. میان تمام آلاینده ­ها، فلزات سنگین به دلیل ماهیت سمی خود بسیار مورد توجه متخصصان زیست ­محیطی گرفته ­اند. بالای محیط ­زیست، می ­تواند خطر اثرات نامطلوب بر سلامتی انسان را دهد. شهرک صنعتی ناجی زنجان ریخته ­گری مس آلیاژهای آن، ­عنوان یکی منابع انت...

Sharks are apex-predators that play an important role in past and present aquatic food webs. However, their diet - especially extinct species is often not well constrained. Dental microwear texture analysis (DMTA) has been successfully applied to reconstruct feeding behaviours of different terrestrial vertebrates. unlike mammals, food-to-tooth contact sharks rather limited because only larger p...

Different compositions of wheat thermoplastic starch (TPS) and polycaprolactone (PCL) are melt blended by extrusion and injected. Different properties are determined: mechanical properties (tensile and impact tests), thermal and thermomechanical properties (DSC and DMTA) and hydrophobicity (contact angle measurement). A large range of blends is analysed with different glycerol (plasticizer):sta...