the microstructure and thermal properties of the synthesized block copolymers and terpolymers via atom transfer radical polymerization (atrp) were studied. the mole fraction of the blocks and chain length of the pvac-b-pma block copolymers were estimated with 1h nmr spectroscopy.differential scanning calorimety measurement shows two different transitions at 36°c and 8°c assigned to pvac and pma...

An optical-DSC system was designed, built, tested, calibrated and verified to incorporate into a single device the capability for simultaneous optical cryomicroscopy and differential scanning calorimetry (DSC). This instrument can be used to obtain both visual and thermal data for an individual specimen subjected to a defined freezing and thawing protocol with very little compromise in quality ...

The equipment for an ultrasensitive, fast, thin-film differential scanning calorimetry @~TDSC! or nanocalorimetry# technique is described. The calorimetric cell ~;0.30 cm! operates by applying a short ~;10 ms! dc current pulse ~;10 mA! to a thin ~;50 nm! patterned metal strip, which is supported by a thin ~;50 nm! SiNx membrane. The calorimeter operates at high heating rates ~15–200 K/ms! and i...

A microfabricated calorimeter (μ-calorimeter) with an enclosed reaction chamber is presented. The 3D micromachined reaction chamber is capable of analyzing liquid samples with volume of 200 nl. The thin film low-stress silicon nitride membrane is used to reduce thermal mass of the calorimeter and increase the sensitivity of system. The μ-calorimeter has been designed to perform DC and AC calori...