Effects of isomorphic poly(butylene succinate-co-butylene fumarate) on the nucleation of poly(butylene succinate) and the formation of poly(butylene succinate) ring-banded spherulites

CrystEngComm ◽  
2018 ◽  
Vol 20 (11) ◽  
pp. 1573-1587 ◽  
Author(s):  
Yue Zheng ◽  
Gengkun Tian ◽  
Jinxin Xue ◽  
Jianjun Zhou ◽  
Hong Huo ◽  
...  
Keyword(s):  
Formation Temperature ◽  
Butylene Succinate ◽  
Banded Spherulite ◽  
Banded Spherulites ◽  
Band Spacing

The composition of isomorphic PBSF can dramatically affect the nucleation efficiency, the formation temperature of ring-banded spherulite and the band spacing of the PBS.

Banded spherulite templated three-dimensional interpenetrated nanoporous materials

RSC Advances ◽  
2014 ◽  
Vol 4 (82) ◽  
pp. 43351-43356 ◽  
Author(s):  
Lijun Ye ◽  
Jishan Qiu ◽  
Tao Wu ◽  
Xianchun Shi ◽  
Yongjin Li
Keyword(s):  
Three Dimensional ◽  
Nanoporous Materials ◽  
Polymer Materials ◽  
Banded Spherulite ◽  
Banded Spherulites

Unique 3-D interconnected nanoporous polymer materials were fabricated by using the banded spherulites as the templates.

Study on Crystal Morphology and Melting Properties of the Isothermally Crystallized Poly(trimethylene Terephthalate)

2010 ◽  
Vol 428-429 ◽  
pp. 259-262
Author(s):  
Ming Tao Run ◽  
Yan Ping Hao ◽  
Hong Zan Song
Keyword(s):  
Optical Microscopy ◽  
Crystallization Temperature ◽  
Isothermal Crystallization ◽  
Crystal Morphology ◽  
Polarized Optical Microscopy ◽  
Banded Spherulites ◽  
Melting Properties ◽  
Band Spacing ◽  
Trimethylene Terephthalate ◽  
Temperature Heating

The spherulites’ morphology and melting properties of the poly(trimethylene terephthalate) formed in limited space at specific temperatures was studied by the polarized optical microscopy (POM). The results suggest that the spherulites’ morphology depends strongly on the temperature. When the isothermal crystallization temperatures increase from 190 to 225 oC, the spherulites’ morphology continuously changes in the following order: nonbanded → regular banded → serrated banded → nonbanded spherulites. Furthermore, the band spacing increases with the crystallization temperature. Heating the banded spherulites will cause them melt as well as the changing of the bandings, especially the bandings changes in the following order: clear → faint → clear → disappear in a certain range of temperature, which is proposed for resulting from a lamellar melting-recrystallization-remelting mechanism.

Crystallization of isomorphic poly(butylene succinate-co butylene fumarate) biopolyester: Single crystals and ring-banded spherulites

2018 ◽  
Vol 68 ◽  
pp. 379-387 ◽  
Author(s):  
Yue Zheng ◽  
Xiao Liu ◽  
Fengquan Liu ◽  
Jinxin Xue ◽  
Jianjun Zhou ◽  
...  
Keyword(s):  
Single Crystals ◽  
Butylene Succinate ◽  
Banded Spherulites

The formation of ring-banded spherulites of poly(ɛ-caprolactone) in its miscible mixtures with poly(styrene-co-acrylonitrile)

Polymer ◽  
1997 ◽  
Vol 38 (23) ◽  
pp. 5897-5901 ◽  
Author(s):  
Zhigang Wang ◽  
Xuehui Wang ◽  
Donghong Yu ◽  
Bingzheng Jiang
Keyword(s):  
Banded Spherulites

Mechanical Property Improvement of Poly(Butylene Succinate) by Reinforcing with Modified Fumed Silica

2014 ◽  
Vol 1025-1026 ◽  
pp. 215-220 ◽  
Author(s):  
Sasirada Weerasunthorn ◽  
Pranut Potiyaraj
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Impact Strength ◽  
Flexural Strength ◽  
Fumed Silica ◽  
Tensile Modulus ◽  
Silica Particles ◽  
Melt Mixing ◽  
Butylene Succinate ◽  
Ir Spectrophotometry

Fumed silica particles (SiO2) were directly added into poly (butylene succinate) (PBS) by melt mixing process. The effects of amount of fumed silica particles on mechanical properties of PBS/fumed silica composites, those are tensile strength, tensile modulus, impact strength as well as flexural strength, were investigated. It was found that the mechanical properties decreased with increasing fumed silica loading (0-3 wt%). In order to increase polymer-filler interaction, fumed silica was treated with 3-glycidyloxypropyl trimethoxysilane (GPMS), and its structure was analyzed by FT-IR spectrophotometry. The PBS/modified was found to possess better tensile strength, tensile modulus, impact strength and flexural strength that those of PBS/fumed silica composites.

scholarly journals Wine By-Products as Raw Materials for the Production of Biopolymers and of Natural Reinforcing Fillers: A Critical Review

Polymers ◽  
2021 ◽  
Vol 13 (3) ◽  
pp. 381
Author(s):  
Alessandro Nanni ◽  
Mariafederica Parisi ◽  
Martino Colonna
Keyword(s):  
Critical Review ◽  
Raw Materials ◽  
Green Revolution ◽  
Building Blocks ◽  
Poly Lactic Acid ◽  
Butylene Succinate ◽  
Reinforcing Fillers ◽  
Plastic Industry ◽  
Review Reports ◽  
By Products

The plastic industry is today facing a green revolution; however, biopolymers, produced in low amounts, expensive, and food competitive do not represent an efficient solution. The use of wine waste as second-generation feedstock for the synthesis of polymer building blocks or as reinforcing fillers could represent a solution to reduce biopolymer costs and to boost the biopolymer presence in the market. The present critical review reports the state of the art of the scientific studies concerning the use of wine by-products as substrate for the synthesis of polymer building blocks and as reinforcing fillers for polymers. The review has been mainly focused on the most used bio-based and biodegradable polymers present in the market (i.e., poly(lactic acid), poly(butylene succinate), and poly(hydroxyalkanoates)). The results present in the literature have been reviewed and elaborated in order to suggest new possibilities of development based on the chemical and physical characteristics of wine by-products.

scholarly journals Temperature dependence of the rigid amorphous fraction of poly(butylene succinate)

RSC Advances ◽  
2021 ◽  
Vol 11 (41) ◽  
pp. 25731-25737
Author(s):  
Maria Cristina Righetti ◽  
Maria Laura Di Lorenzo ◽  
Patrizia Cinelli ◽  
Massimo Gazzano
Keyword(s):  
Body Temperature ◽  
Temperature Dependence ◽  
Human Body ◽  
Room Temperature ◽  
Rigid Amorphous Fraction ◽  
Butylene Succinate ◽  
Amorphous Fraction ◽  
Human Body Temperature ◽  
Rigid Amorphous

At room temperature and at the human body temperature, all the amorphous fraction is mobile in poly(butylene succinate).

scholarly journals Carbon Isotope Fractionation during the Formation of CO2 Hydrate and Equilibrium Pressures of 12CO2 and 13CO2 Hydrates

Molecules ◽  
2021 ◽  
Vol 26 (14) ◽  
pp. 4215
Author(s):  
Hiromi Kimura ◽  
Go Fuseya ◽  
Satoshi Takeya ◽  
Akihiro Hachikubo
Keyword(s):  
Carbon Isotope ◽  
Isotope Fractionation ◽  
Small Difference ◽  
Hydrate Formation ◽  
Formation Temperature ◽  
Carbon Isotope Fractionation ◽  
Unit Cell Size ◽  
Naturally Occurring ◽  
Three Phase ◽  
The Difference

Knowledge of carbon isotope fractionation is needed in order to discuss the formation and dissociation of naturally occurring CO2 hydrates. We investigated carbon isotope fractionation during CO2 hydrate formation and measured the three-phase equilibria of 12CO2–H2O and 13CO2–H2O systems. From a crystal structure viewpoint, the difference in the Raman spectra of hydrate-bound 12CO2 and 13CO2 was revealed, although their unit cell size was similar. The δ13C of hydrate-bound CO2 was lower than that of the residual CO2 (1.0–1.5‰) in a formation temperature ranging between 226 K and 278 K. The results show that the small difference between equilibrium pressures of ~0.01 MPa in 12CO2 and 13CO2 hydrates causes carbon isotope fractionation of ~1‰. However, the difference between equilibrium pressures in the 12CO2–H2O and 13CO2–H2O systems was smaller than the standard uncertainties of measurement; more accurate pressure measurement is required for quantitative discussion.

scholarly journals Thermoplastic Blends Based on Poly(Butylene Succinate-co-Adipate) and Different Collagen Hydrolysates from Tanning Industry—II: Aerobic Biodegradation in Composting Medium

2021 ◽  
Author(s):  
Roberto Altieri ◽  
Maurizia Seggiani ◽  
Alessandro Esposito ◽  
Patrizia Cinelli ◽  
Vitale Stanzione
Keyword(s):  
Chemical Characterization ◽  
Aerobic Biodegradation ◽  
Lepidium Sativum ◽  
Biodegradation Rate ◽  
Butylene Succinate ◽  
Dog Bone ◽  
Thermoplastic Blends ◽  
Collagen Hydrolysates ◽  
By Products ◽  
Tanning Industry

AbstractTwo different raw hydrolyzed collagens (HCs), by-products of the Tannery industry, were investigated in blends with a bioplastic, as poly(butylene succinate-co-adipate) (PBSA), for the production of thermoplastic items for possible applications in agriculture. Chemical characterization of selected PBSA/HC blends and phytotoxicity assays on garden cress seeds (Lepidium sativum L.), used as spy species, were carried out; in addition, biodegradation and disintegration of specimens were assessed under controlled composting conditions at different temperature (58 and 25 °C). Although one of the HC investigated released sodium chloride in the aqueous extract, all PBSA/HC blends, up to 20 wt.% HC, resulted no-phytotoxic and showed considerable amounts of macro- and micro- nutrients for plants (mainly nitrogen). Regardless the amount added, HCs enhanced the biodegradation rate of PBSA/HC blends in compost at 58 °C compared to pure PBSA; lowering the temperature at 25 °C, as expected, biodegradation rate slightly lowered using the same compost. Most disintegration tests, performed on dog bone samples, corroborated the results of the biodegradation tests, thus suggesting that plastic mixtures could reasonably end their life cycle in a composting facility without decreasing the quality and the safety of the resulting compost. The outcomes achieved encourage the use of raw collagen hydrolysates from tanning industry in the production of PBSA-based thermoplastic blends to produce compostable items (mulching films and/or plant pots) for more sustainable uses in agriculture and/or plant nurseries. In addition, the use of these low-cost by-products can lower the cost of final product and give it fertilizing properties for plants given the presence of organic nitrogen in the hydrolysates.

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