Results 51 to 60 of about 2,281,316 (332)

Biodegradable hollow fibres for the controlled release of hormones [PDF]

open access: yes, 1987
Poly(l-lactide), (PLLA), hollow fibres were prepared using a dry-wet phase inversion spinning process. The effect of several spinning parameters (i.e. bore medium flow rate, spinning dope extrusion rate, fibre take-up rate, and spinning height) on the ...
Albers, J.H.M.   +5 more
core   +3 more sources

Controlling the isothermal crystallization of isodimorphic PBS-ran-PCL random copolymers by varying composition and supercooling [PDF]

open access: yes, 2020
In this work, we study for the first time, the isothermal crystallization behavior of isodimorphic random poly(butylene succinate)-ran-poly(e-caprolactone) copolyesters, PBS-ran-PCL, previously synthesized by us.
Martínez de Ilarduya Sáez de Asteasu, Domingo Antxon   +5 more
core   +2 more sources

Toughening of Poly(L-lactide) with Blends of Poly(ε-caprolactone-co-L-lactide) in the Presence of Chain Extender

open access: yesInternational Journal of Biomaterials, 2018
A poly(ε-caprolactone-co-L-lactide) copolyester was synthesized and employed to toughen poly(L-lactide) (PLLA) by reactive melt blending in the presence of an epoxy-based chain extender.
Yaowalak Srisuwan   +2 more
doaj   +1 more source

A review on introduction and applications of starch and its biodegradable polymers

open access: yesInternational Journal of Environment, 2015
Biodegradable polymers play a very important role in plastic engineering by replacing non biodegradable, non renewable petrol based polymers. Starch is a renewable, biodegradable, low cost natural polymer with high availability.
Shanta Pokhrel
doaj   +1 more source

Enzymatic activity toward poly(L-lactic acid) implants [PDF]

open access: yes, 1990
Tissue reactions toward biodegradable poly(L-lactic acid) implants were monitored by studying the activity pattern of seven enzymes as a function of time: alkaline phosphatase, acid phosphatase, -naphthyl acetyl esterase, -glucuronidase, ATP-ase, NADH ...
Feijen, J.   +4 more
core   +4 more sources

Structural variants of biodegradable polyesterurethane in vivo evoke a cellular and angiogenic response that is dictated by architecture [PDF]

open access: yes, 2009
This is the author's accepted manuscript. The final published article is available from the link below. Copyright @ 2008 Acta Materialia Inc.The aim of this study was to investigate an in vivo tissue response to a biodegradable polyesterurethane ...
Burugapalli, K   +3 more
core   +1 more source

(Bio)degradable polymeric materials for sustainable future—Part 3: Degradation studies of the PHA/wood flour-based composites and preliminary tests of antimicrobial activity [PDF]

open access: yes, 2020
© 2020 The Authors. Published by MDPI. This is an open access article available under a Creative Commons licence. The published version can be accessed at the following link on the publisher’s website: https://doi.org/10.3390/ma13092200The need for a ...
Janeczek, Henryk   +10 more
core   +1 more source

Fungal degradation of reprocessed PP/PBAT/thermoplastic starch blends

open access: yesJournal of Materials Research and Technology, 2020
It is well known that the inadequate disposal of polymeric materials causes significant environmental problems. Recycling and the use of biodegradable polymers are among the methods used to minimize these problems. However, the low mechanical performance
Thainá Araújo de Oliveira   +5 more
doaj   +1 more source

Bioplastics made from upcycled food waste. Prospects for their use in the field of design [PDF]

open access: yes, 2017
In recent years, the negative effects on the environment of the intensive use of synthetic, oil-derived plastics to make products, even those with a limited required duration, have given renewed impetus to the search for biodegradable and/or compostable ...
Cecchini, Cecilia
core   +1 more source

Biodegradable Polymers [PDF]

open access: yesMaterials, 2009
Biodegradable materials are used in packaging, agriculture, medicine and other areas. In recent years there has been an increase in interest in biodegradable polymers. Two classes of biodegradable polymers can be distinguished: synthetic or natural polymers.
Vroman, Isabelle, Tighzert, Lan
openaire   +1 more source

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